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Windows
Analysis Report
1wrLmYiC62.exe
Overview
General Information
Sample name: | 1wrLmYiC62.exerenamed because original name is a hash value |
Original sample name: | dd53ac67d905defd4bd1f2b9b413dfc679e7c076e92792be650c38659e1557c5.exe |
Analysis ID: | 1586714 |
MD5: | 9c540950f5a8981844ff33bfc55d2f36 |
SHA1: | 8c70f2bcb995ce313843cf7103c659c12eb263dc |
SHA256: | dd53ac67d905defd4bd1f2b9b413dfc679e7c076e92792be650c38659e1557c5 |
Tags: | exeuser-crep1x |
Infos: | |
Detection
Score: | 84 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Creates a process in suspended mode (likely to inject code)
Deletes files inside the Windows folder
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
Drops PE files to the windows directory (C:\Windows)
Drops files with a non-matching file extension (content does not match file extension)
Extensive use of GetProcAddress (often used to hide API calls)
Found dropped PE file which has not been started or loaded
Found evaded block containing many API calls
Found evasive API chain (date check)
Found evasive API chain checking for process token information
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
May sleep (evasive loops) to hinder dynamic analysis
PE file contains an invalid checksum
PE file contains executable resources (Code or Archives)
PE file contains more sections than normal
PE file contains sections with non-standard names
Queries the installation date of Windows
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Uses the system / local time for branch decision (may execute only at specific dates)
Classification
- System is w10x64
- 1wrLmYiC62.exe (PID: 5640 cmdline:
"C:\Users\ user\Deskt op\1wrLmYi C62.exe" MD5: 9C540950F5A8981844FF33BFC55D2F36) - 1wrLmYiC62.exe (PID: 5440 cmdline:
"C:\Window s\Temp\{24 838F2D-E61 B-4F26-8FE 2-D9BADED0 7C2D}\.cr\ 1wrLmYiC62 .exe" -bur n.clean.ro om="C:\Use rs\user\De sktop\1wrL mYiC62.exe " -burn.fi lehandle.a ttached=51 2 -burn.fi lehandle.s elf=532 MD5: 9C540950F5A8981844FF33BFC55D2F36) - AdobeSync.exe (PID: 6504 cmdline:
C:\Windows \Temp\{36C 50972-238F -4D65-B4AC -8D7027557 0F8}\.ba\A dobeSync.e xe MD5: F778E9136AB0DB9DE9802A7043DE50A7) - AdobeSync.exe (PID: 4764 cmdline:
C:\Users\u ser\AppDat a\Roaming\ PatchReade rWCF\Adobe Sync.exe MD5: F778E9136AB0DB9DE9802A7043DE50A7) - cmd.exe (PID: 6088 cmdline:
C:\Windows \SysWOW64\ cmd.exe MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 1976 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - LocalCtrl_alpha_v3.exe (PID: 6020 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\LocalCt rl_alpha_v 3.exe MD5: 967F4470627F823F4D7981E511C9824F)
- AdobeSync.exe (PID: 5764 cmdline:
"C:\Users\ user\AppDa ta\Roaming \PatchRead erWCF\Adob eSync.exe" MD5: F778E9136AB0DB9DE9802A7043DE50A7) - cmd.exe (PID: 3836 cmdline:
C:\Windows \SysWOW64\ cmd.exe MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 6380 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - LocalCtrl_alpha_v3.exe (PID: 4696 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\LocalCt rl_alpha_v 3.exe MD5: 967F4470627F823F4D7981E511C9824F)
- cleanup
⊘No configs have been found
⊘No yara matches
⊘No Sigma rule has matched
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | ReversingLabs: | ||
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Source: | Integrated Neural Analysis Model: |
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: |
Source: | Code function: | 0_2_006BA0BB | |
Source: | Code function: | 0_2_006DFA62 | |
Source: | Code function: | 0_2_006B9E9E | |
Source: | Code function: | 2_2_000FA0BB | |
Source: | Code function: | 2_2_0011FA62 | |
Source: | Code function: | 2_2_000F9E9E | |
Source: | Code function: | 3_2_00DB00D0 | |
Source: | Code function: | 3_2_00DB0070 |
Source: | Static PE information: |
Source: | File opened: | Jump to behavior |
Source: | Static PE information: |
Source: | Binary string: | ||
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