b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183

Analysis

max time kernel
169s
max time network
200s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 18:36

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General

Target

b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe
Size

1.2MB
MD5

03bb57c0b709f25040a1b9251aadb7eb
SHA1

3927c036a94e084eb629c196492565cd4db53eba
SHA256

b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183
SHA512

6b7b3d3c41825a46e931f209afe126b35c982ddc840caeca7597c32736bf4fc4dacbe447f6982654b0e922ce3db63422d0d44d0eee728cdf92a17ec737d5c170
SSDEEP

3072:qXJCFRSt63wPwWYhVTjJ5cHymR7w0YmS8O:LdnWYD95z4w0Dt

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
2408	winlogon.exe
1696	winlogon.exe
1716	winlogon.exe
4508	winlogon.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4668-134-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4668-136-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4668-137-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4668-140-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4668-145-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/1696-150-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/1696-151-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/1696-154-0x0000000000400000-0x000000000041C000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1148 set thread context of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 2408 set thread context of 1696	2408	winlogon.exe	88
PID 1696 set thread context of 1716	1696	winlogon.exe	92
PID 1696 set thread context of 4508	1696	winlogon.exe	104

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1752	4508	WerFault.exe	104

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4668	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe
1696	winlogon.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 428	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	83
PID 1148 wrote to memory of 428	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	83
PID 1148 wrote to memory of 428	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	83
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 1148 wrote to memory of 4668	1148	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	84
PID 4668 wrote to memory of 2408	4668	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	87
PID 4668 wrote to memory of 2408	4668	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	87
PID 4668 wrote to memory of 2408	4668	b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe	87
PID 2408 wrote to memory of 2416	2408	winlogon.exe	89
PID 2408 wrote to memory of 2416	2408	winlogon.exe	89
PID 2408 wrote to memory of 2416	2408	winlogon.exe	89
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 2408 wrote to memory of 1696	2408	winlogon.exe	88
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 1716	1696	winlogon.exe	92
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104
PID 1696 wrote to memory of 4508	1696	winlogon.exe	104

C:\Users\Admin\AppData\Local\Temp\b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe
"C:\Users\Admin\AppData\Local\Temp\b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\\svchost.exe
  2⤵
  PID:428
- C:\Users\Admin\AppData\Local\Temp\b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4668
- - C:\Users\Admin\E696D64614\winlogon.exe
    "C:\Users\Admin\E696D64614\winlogon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2408
  - - C:\Users\Admin\E696D64614\winlogon.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1696
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:1716
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:4508
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4508 -s 12
        6⤵
        Program crash
        
        PID:1752
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      4⤵
      PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1716 -ip 1716
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4508 -ip 4508
1⤵
PID:868

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.2MB

MD5
03bb57c0b709f25040a1b9251aadb7eb

SHA1
3927c036a94e084eb629c196492565cd4db53eba

SHA256
b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183

SHA512
6b7b3d3c41825a46e931f209afe126b35c982ddc840caeca7597c32736bf4fc4dacbe447f6982654b0e922ce3db63422d0d44d0eee728cdf92a17ec737d5c170

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.2MB

MD5
03bb57c0b709f25040a1b9251aadb7eb

SHA1
3927c036a94e084eb629c196492565cd4db53eba

SHA256
b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183

SHA512
6b7b3d3c41825a46e931f209afe126b35c982ddc840caeca7597c32736bf4fc4dacbe447f6982654b0e922ce3db63422d0d44d0eee728cdf92a17ec737d5c170

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.2MB

MD5
03bb57c0b709f25040a1b9251aadb7eb

SHA1
3927c036a94e084eb629c196492565cd4db53eba

SHA256
b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183

SHA512
6b7b3d3c41825a46e931f209afe126b35c982ddc840caeca7597c32736bf4fc4dacbe447f6982654b0e922ce3db63422d0d44d0eee728cdf92a17ec737d5c170

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.2MB

MD5
03bb57c0b709f25040a1b9251aadb7eb

SHA1
3927c036a94e084eb629c196492565cd4db53eba

SHA256
b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183

SHA512
6b7b3d3c41825a46e931f209afe126b35c982ddc840caeca7597c32736bf4fc4dacbe447f6982654b0e922ce3db63422d0d44d0eee728cdf92a17ec737d5c170

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.2MB

MD5
03bb57c0b709f25040a1b9251aadb7eb

SHA1
3927c036a94e084eb629c196492565cd4db53eba

SHA256
b218041ae37bb4f37715722d97a5d7b7b6fa7de3bcffb0b2ccbdeb5b93bbf183

SHA512
6b7b3d3c41825a46e931f209afe126b35c982ddc840caeca7597c32736bf4fc4dacbe447f6982654b0e922ce3db63422d0d44d0eee728cdf92a17ec737d5c170

Download Submit
memory/1696-150-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1696-154-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1696-151-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4668-145-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4668-140-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4668-137-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4668-136-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4668-134-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download