5ae9da2e7c28d65a8de302ea31ea4c46de1b1490468e6a0858470674b9d4292d

Analysis

max time kernel
145s
max time network
151s
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, 16:24

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General

Target

2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe
Size

63KB
MD5

335e44bed44cafcbb2d96b0bad9b685d
SHA1

e52c24c83b0e393a9e905627da8038db81a352ce
SHA256

5ae9da2e7c28d65a8de302ea31ea4c46de1b1490468e6a0858470674b9d4292d
SHA512

ab00645028c92594ed8fba52a8fb5401ba1afe6bf3632f6e17bdc9fb0ba9326e5e153dbc648964d70addf3e1c4669ea092725b46ae3e4dcfd283d16ba6e65667
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSA9E:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023202-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023202-12.dat	CryptoLocker_set1

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1664	hurok.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 2060 wrote to memory of 1664	2060	2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe	88
PID 2060 wrote to memory of 1664	2060	2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe	88
PID 2060 wrote to memory of 1664	2060	2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_335e44bed44cafcbb2d96b0bad9b685d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1664

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\hurok.exe

Filesize
64KB

MD5
20bf190c91d41b4477120ebe7d163108

SHA1
cc2802c76d906d04bad834d466a0f3f13ef5984e

SHA256
593f284fdeaf64253d9fa51b2cf61591331746f2dbcdea2eec2e24443a3bc240

SHA512
805fdb1bb2a48b96233909b54603530049a1ca8549a9b4dec7537533ce5063bd7579c3e43a89337969c201374a9b07f9ed21b7441da3b58c6089842b67277a82

Download Submit
memory/2060-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2060-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2060-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download