xmrig | 752e7d326d94fefa12869bee8c54bfb197d193f151d72f936457a27bbd6b6877

General

Target

Loader.exe
Size

1.6MB
MD5

a44e526804469076d712e8a05ddd7759
SHA1

7010fda540e70139020a7a79730e74e99bd8e6c9
SHA256

46d7128963bde013c8ec359b285e47eabbf9c88e332735e02ced518773e8e95f
SHA512

04c40ef00c80d641c4f7bced8aefc180d695ea23ef79e272167f1a567484be2ab7031ca55a246cbeba1ed0c0ed93223fc2a33daed7f2048c62f169f0e6325b36
SSDEEP

49152:fBvdZG5o8InNXL9Qn0HpZjI64n2hcyfT2:pFZG5oNnRfh9

Score

10^/10

xmrig miner persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

Loader.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Google\\Chrome.exe\","	Loader.exe

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

XMRig Miner payload 6 IoCs

miner

Processes:

resource	yara_rule
behavioral2/memory/1780-146-0x0000000140344454-mapping.dmp	xmrig
behavioral2/memory/1780-145-0x0000000140000000-0x00000001407CA000-memory.dmp	xmrig
behavioral2/memory/1780-147-0x0000000140000000-0x00000001407CA000-memory.dmp	xmrig
behavioral2/memory/1780-148-0x0000000140000000-0x00000001407CA000-memory.dmp	xmrig
behavioral2/memory/1780-150-0x0000000140000000-0x00000001407CA000-memory.dmp	xmrig
behavioral2/memory/1780-152-0x0000000140000000-0x00000001407CA000-memory.dmp	xmrig

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

Processes:

Loader.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation Loader.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

Loader.exeMSBuild.exe

description	pid	process	target process
PID 1536 set thread context of 232	1536	Loader.exe	MSBuild.exe
PID 232 set thread context of 1780	232	MSBuild.exe	AddInProcess.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 35 IoCs

Processes:

powershell.exeMSBuild.exe

pid	process
1348	powershell.exe
1348	powershell.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe
232	MSBuild.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

pid process

664

pid	process
664

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

powershell.exeLoader.exeMSBuild.exeAddInProcess.exe

description	pid	process
Token: SeDebugPrivilege	1348	powershell.exe
Token: SeDebugPrivilege	1536	Loader.exe
Token: SeDebugPrivilege	232	MSBuild.exe
Token: SeLockMemoryPrivilege	1780	AddInProcess.exe
Token: SeLockMemoryPrivilege	1780	AddInProcess.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AddInProcess.exe

pid process

1780 AddInProcess.exe

pid	process
1780	AddInProcess.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

Loader.exeMSBuild.exe

description	pid	process	target process
PID 1536 wrote to memory of 1348	1536	Loader.exe	powershell.exe
PID 1536 wrote to memory of 1348	1536	Loader.exe	powershell.exe
PID 1536 wrote to memory of 232	1536	Loader.exe	MSBuild.exe
PID 1536 wrote to memory of 232	1536	Loader.exe	MSBuild.exe
PID 1536 wrote to memory of 232	1536	Loader.exe	MSBuild.exe
PID 1536 wrote to memory of 232	1536	Loader.exe	MSBuild.exe
PID 1536 wrote to memory of 232	1536	Loader.exe	MSBuild.exe
PID 1536 wrote to memory of 232	1536	Loader.exe	MSBuild.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe
PID 232 wrote to memory of 1780	232	MSBuild.exe	AddInProcess.exe

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1536

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAyAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1348

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess.exe -o rx.unmineable.com:3333 -a rx -k -u RVN:RMHgF8iWWzutXCpbDgarftrSUoycmQgCqo.Worker_CPU -p x --cpu-max-threads-hint=50
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

memory/232-140-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/232-144-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/232-143-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/232-141-0x0000000000400000-mapping.dmp

Download
memory/1348-135-0x0000000000000000-mapping.dmp

Download
memory/1348-136-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/1348-138-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/1348-139-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/1536-142-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/1536-137-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/1536-132-0x000002A7F5830000-0x000002A7F59D2000-memory.dmp

Filesize
1.6MB

Download
memory/1536-133-0x000002A7F80F0000-0x000002A7F8112000-memory.dmp

Filesize
136KB

Download
memory/1536-134-0x00007FF91F660000-0x00007FF920121000-memory.dmp

Filesize
10.8MB

Download
memory/1780-146-0x0000000140344454-mapping.dmp

Download
memory/1780-145-0x0000000140000000-0x00000001407CA000-memory.dmp

Filesize
7.8MB

Download
memory/1780-147-0x0000000140000000-0x00000001407CA000-memory.dmp

Filesize
7.8MB

Download
memory/1780-148-0x0000000140000000-0x00000001407CA000-memory.dmp

Filesize
7.8MB

Download
memory/1780-149-0x000001D038000000-0x000001D038020000-memory.dmp

Filesize
128KB

Download
memory/1780-150-0x0000000140000000-0x00000001407CA000-memory.dmp

Filesize
7.8MB

Download
memory/1780-151-0x000001D0398F0000-0x000001D039930000-memory.dmp

Filesize
256KB

Download
memory/1780-152-0x0000000140000000-0x00000001407CA000-memory.dmp

Filesize
7.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads