9dc3e43d9b066a6388bddc485a2088364f00c183b24bea74733aff16d40185d9

Analysis

max time kernel
98s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 00:42

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General

Target

2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe
Size

45KB
MD5

cb76cce73bbccf4113497189fb630c90
SHA1

9ff4e5f0a64235df4fc522e34a681feb589a9874
SHA256

9dc3e43d9b066a6388bddc485a2088364f00c183b24bea74733aff16d40185d9
SHA512

15512a2e14ffcaf9f7051c7c39cad0d04ba139c1d87f8cd71c635ffa3e609d6ca594ae64cd481b9cced1dfc65caa29cffca2edcbce45f24097450cf4fac7ff1a
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wsf:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022775-14.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
2608	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 3084 wrote to memory of 2608	3084	2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe	89
PID 3084 wrote to memory of 2608	3084	2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe	89
PID 3084 wrote to memory of 2608	3084	2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_cb76cce73bbccf4113497189fb630c90_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2608

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
45KB

MD5
9900b57ba3d773593b25cbe8d4b60417

SHA1
eb0ca97f76df0b1606fb7e5f5df975cdaa6209be

SHA256
d3c6e600964e9b616d5309e88483908afb82eb90ea49d52d03324d729610d71b

SHA512
36552f2b5cf1f16e8e48c241265f41d3da39abde9266af7d73a0d50b09343cdbee934168cfd9dfc93d5ea2c192fab9264b5a5ea681956fee651f1cecf745976a

Download Submit
memory/2608-18-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2608-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2608-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2608-56-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3084-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3084-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3084-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3084-3-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/3084-10-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3084-21-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download