9d3984117527058bb5cf3e4db030ed77f0e14f0410b16d456d004b497066e36b

Analysis

max time kernel
135s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 03:42

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General

Target

2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe
Size

102KB
MD5

50bb2a5567df83a1e416b4de49e030df
SHA1

a58885c1705317e54e803330e9b7886f8b19db44
SHA256

9d3984117527058bb5cf3e4db030ed77f0e14f0410b16d456d004b497066e36b
SHA512

0ce5adf5083c6ea0e0d3b13cc5bad1554b0ff04b9485132a9d51df47c4f1065b3640f06731c4da278388c149063188c9956fad0117a4b02e93d47619d725b109
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2QfS:xj+VGMOtEvwDpjubwQEIiVmkxv/cS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3292-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000400000002271f-13.dat	CryptoLocker_rule2
behavioral2/memory/3292-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3772-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/3292-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000400000002271f-13.dat	CryptoLocker_set1
behavioral2/memory/3292-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3772-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3292-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000400000002271f-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3292-18-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3772-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3772	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 3772	3292	2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe	98
PID 3292 wrote to memory of 3772	3292	2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe	98
PID 3292 wrote to memory of 3772	3292	2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_50bb2a5567df83a1e416b4de49e030df_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3772

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 --no-appcompat-clear --mojo-platform-channel-handle=2660 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
1⤵
PID:4304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
102KB

MD5
4c70e9c636a0e50d7d5293414cc49ff2

SHA1
00a56acbf07dfd443a42191813a43ebe1ad92818

SHA256
2abb3e59502368257d5d8df6a559c64138c6a3177e852f811e4577840c196766

SHA512
44ccf6e4a91a2f1c5759cff5117c2e2bc4d41ef06495d717f947dd9f78be918091d11894de5ab3c847568ed12729b0da9a2099510278d7e9580ff431f7999d7f

Download Submit
memory/3292-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3292-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3292-2-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3292-3-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3292-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3772-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3772-21-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3772-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download