d8791625d86dff22d527f72b69d314f9a34e88d1129e3ef1d29e040fcb433208

General

Target

2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe
Size

37KB
MD5

c1e80dc69b7b74cc5eac95c315d62d83
SHA1

531b5886d64ce1a228ea921999fb593396943325
SHA256

d8791625d86dff22d527f72b69d314f9a34e88d1129e3ef1d29e040fcb433208
SHA512

391c48bf1110d4b02f8aa15029e362a6ee3121b37057b6dbf936dfe451ed1f4c5855f4f22edbffe8175f25fea4eaaf9e41627e28b1db6d5663554fba3d11687d
SSDEEP

768:ETEjmqVxAxuZY9AldyQSRA2wnXw/uaLoBB5Ux4PC74801h2w:cgxAxuW2ldyYvhauBSx40480Ow

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe

Executes dropped EXE 1 IoCs

pid	Process
4360	quickassist.exe

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

defense_evasion

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
File opened for modification	C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe:Zone.Identifier	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fsutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	quickassist.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4960	cmd.exe
4080	PING.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe:Zone.Identifier	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4080	PING.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 4960	3396	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe	98
PID 3396 wrote to memory of 4960	3396	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe	98
PID 3396 wrote to memory of 4960	3396	2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe	98
PID 4960 wrote to memory of 4080	4960	cmd.exe	100
PID 4960 wrote to memory of 4080	4960	cmd.exe	100
PID 4960 wrote to memory of 4080	4960	cmd.exe	100
PID 4960 wrote to memory of 636	4960	cmd.exe	101
PID 4960 wrote to memory of 636	4960	cmd.exe	101
PID 4960 wrote to memory of 636	4960	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe"
1⤵
- Checks computer location settings
- Subvert Trust Controls: Mark-of-the-Web Bypass
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /d /c ping -n 2 127.0.0.1 > NUL & fsutil file setzerodata offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe" & del "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe" > NUL & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4960
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4080
- - C:\Windows\SysWOW64\fsutil.exe
    fsutil file setzerodata offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:636

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4616,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=1008 /prefetch:8
1⤵
PID:228

C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe
C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe

Filesize
67KB

MD5
6f250371c7fecac6c02476d7fdfe5241

SHA1
000dacde56656a7cb3b192eb5dd3742bb8096935

SHA256
09b84a4e33ad286e7a461b08ca2e51e5654c9c552a0e7bc7ddbc860bcbcf643e

SHA512
d8f65b0d426b2ea153d244d2bb6a7a99bea140d33b9089a8d98c5beba587495b066840fe467ac7370a5786ef3d0af2cbb8e6a332b5f418d780da7170d048c093

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C:\Users\Admin\AppData\Local\Temp\tmp6FFB.tmp

Filesize
37KB

MD5
c1e80dc69b7b74cc5eac95c315d62d83

SHA1
531b5886d64ce1a228ea921999fb593396943325

SHA256
d8791625d86dff22d527f72b69d314f9a34e88d1129e3ef1d29e040fcb433208

SHA512
391c48bf1110d4b02f8aa15029e362a6ee3121b37057b6dbf936dfe451ed1f4c5855f4f22edbffe8175f25fea4eaaf9e41627e28b1db6d5663554fba3d11687d

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Analysis

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