be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d

Analysis

max time kernel
153s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 18:57

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General

Target
be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe
Size 99KB
Sample221127-xmd6bseh8z
SHA256 be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d
MD5 fde3e14194fb2ede14c79095b9f5c4e1
SHA1 060bc56d3d0970e238888063ee459720c0288376
SHA512 2e15fc7f544c4f89b41c914ac0a2328d5e5fae7ef894e7fc85b1530a7cd6f0bce2da9ad336352aae5c65924e4276454ed019d9b12fd64ff645fee9d39b6ac8ce
SSDEEP 3072:O0MXqaBE4bpxmYVzfVGNKc+fpemLLFkHOxGVpv:OdqaBE4NX1VVc+ReERxO
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1476	rundll32.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\X5GMCsbE = "rundll32.exe C:\\B044Lu\\X5GMCsbE.dll,Xiwenlej"	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\syotom = "C:\\Windows\\SysWOW64\\svchost.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1476 set thread context of 2244	1476	rundll32.exe	89

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 1476	4192	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe	86
PID 4192 wrote to memory of 1476	4192	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe	86
PID 4192 wrote to memory of 1476	4192	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe	86
PID 4192 wrote to memory of 4448	4192	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe	87
PID 4192 wrote to memory of 4448	4192	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe	87
PID 4192 wrote to memory of 4448	4192	be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe	87
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89
PID 1476 wrote to memory of 2244	1476	rundll32.exe	89

C:\Users\Admin\AppData\Local\Temp\be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe
"C:\Users\Admin\AppData\Local\Temp\be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\B044Lu\X5GMCsbE.dll,Xiwenlej
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\System32\svchost.exe
    3⤵
    - Adds Run key to start application
    PID:2244
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\be4e0cc5c27a6527f098a3371240622d9e4f4822f238ee92750f2f60daa8c91d.exe"
  2⤵
  PID:4448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

X5GMCsbE.dll

Path C:\B044Lu\X5GMCsbE.dll
Size 78KB
SHA256 64afbf75e8051c3d0ee670f841814a49207f8456202f906f572de202d1b8a457
MD5 c8a117fb1e75d61d47a4015b91826dcf
SHA1 2ec6d01cf8d27162863a427ea49c96b927910053
SHA512 8a104c6dd0c5ed1cb5ad946734962753205644defe1abc2d271d366dc4b1618589b24e3c130c4182fd7580b34a21c558b9005a211365686106969e9c2669e4dd
SSDEEP 1536:OObC9ocVzVvh48fisECaKF1VCLvQXWSahf6X37WQCXpOsY:OOu9ocVBv28Kr7KAbQXWnhfc3HCZq
MD5 SHA1 SHA512 SSDEEP

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X5GMCsbE.dll

Path C:\B044Lu\X5GMCsbE.dll
Size 78KB
SHA256 64afbf75e8051c3d0ee670f841814a49207f8456202f906f572de202d1b8a457
MD5 c8a117fb1e75d61d47a4015b91826dcf
SHA1 2ec6d01cf8d27162863a427ea49c96b927910053
SHA512 8a104c6dd0c5ed1cb5ad946734962753205644defe1abc2d271d366dc4b1618589b24e3c130c4182fd7580b34a21c558b9005a211365686106969e9c2669e4dd
SSDEEP 1536:OObC9ocVzVvh48fisECaKF1VCLvQXWSahf6X37WQCXpOsY:OOu9ocVBv28Kr7KAbQXWnhfc3HCZq
MD5 SHA1 SHA512 SSDEEP

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memory/1476-141-0x0000000001090000-0x0000000001093000-memory.dmp

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memory/1476-151-0x0000000010000000-0x000000001003C000-memory.dmp

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memory/1476-142-0x0000000001090000-0x0000000001093000-memory.dmp

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memory/1476-138-0x0000000010000000-0x000000001003C000-memory.dmp

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memory/2244-144-0x0000000000400000-0x000000000042D000-memory.dmp

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memory/2244-145-0x0000000000400000-0x000000000042D000-memory.dmp

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memory/2244-146-0x0000000000400000-0x000000000042D000-memory.dmp

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memory/2244-147-0x0000000000400000-0x000000000042D000-memory.dmp

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memory/2244-148-0x0000000000400000-0x000000000042D000-memory.dmp

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memory/2244-150-0x0000000000400000-0x000000000042D000-memory.dmp

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memory/4192-140-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4192-134-0x0000000000030000-0x0000000000033000-memory.dmp

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memory/4192-132-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4192-133-0x0000000000030000-0x0000000000033000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads