d5f5db97dad6ee49d5a5177141447b09c4c44e6901ad2d44d083d986b2d3d9ad

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 05:46

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General

Target

2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe
Size

66KB
MD5

6fdc1ab37ef2dcfac7575fb3e6025ec0
SHA1

1cf3bc5353454dc0f9a3c60a7369abb7e96c61f8
SHA256

d5f5db97dad6ee49d5a5177141447b09c4c44e6901ad2d44d083d986b2d3d9ad
SHA512

83e4a13f1a05d3173e3f5f0d43016a3ed23b45296765a7e25347477f77f4dcf70b10b02c270acbad27405a07ca2673839805cc9cabc4511b79586d0cca803266
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVE:ZVxkGOtEvwDpjcawq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231e3-13.dat	CryptoLocker_rule2

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-1-5-21-2200714112-3788720386-2559682836-1000\Control Panel\International\Geo\Nation	2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2284	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 216 wrote to memory of 2284	216	2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe	87
PID 216 wrote to memory of 2284	216	2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe	87
PID 216 wrote to memory of 2284	216	2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_6fdc1ab37ef2dcfac7575fb3e6025ec0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:216
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2284

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
66KB

MD5
d7a2ad74258cea8f01a62525f9b36b11

SHA1
e05e43e2f54761d312273e19f1b95733dac12fad

SHA256
a50529cd921be346c4cfbe6d65fb6548fc0fe6dbb17d07052b02d0d9cffe474e

SHA512
38eb3cae5a8e4195f28d5bfaf03167055ffb44f13c84620f53b27e7109b5f17fb5bd061bdcb0a8864eddb65ae692507b356843e1f09f856bf875c0ae83df6941

Download Submit
memory/216-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/216-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/216-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/216-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/216-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2284-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2284-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2284-24-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download