690a6d979bf97421d96ba546e4d299a40c0debf96c6f1ee869e95360715c62dc

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-04-2024 11:03

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General

Target

2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe
Size

47KB
MD5

d047acb2e3c9ba8251790b8f4f657067
SHA1

08e0665446aaf436e3149012d0bb6fd8a9cdccaf
SHA256

690a6d979bf97421d96ba546e4d299a40c0debf96c6f1ee869e95360715c62dc
SHA512

0caf4357aa6accb4ee92ded0dc9db44f0468f09019e60dcecde89089cd43870ecdc83a91849c6ab13ab99013a6fb7e1c4691eedb0ed1c50c43a1a5db9ab78b82
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUnTx:vj+jsMQMOtEvwDpj5Hczer5i6x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023215-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023215-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4148	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 4764 wrote to memory of 4148	4764	2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe	89
PID 4764 wrote to memory of 4148	4764	2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe	89
PID 4764 wrote to memory of 4148	4764	2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_d047acb2e3c9ba8251790b8f4f657067_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4764
- 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:4148

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
47KB

MD5
e97bb24f52b0ddccb49e107b3e95a9a7

SHA1
6fcfd6b732bf345fa76e954849f006c94bb38f6a

SHA256
e5d54f556fe89497ced746e156f42573a5fa41c25793973a9f41f19ae07c1317

SHA512
62bd036ef4231877d3edec4470a50893854a7e9be89ba698b8d5bf35011707ada092fc036b566417eb2f3e3bfcd3f2d783b162774c7fe54d82022315b782d97c

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
1KB

MD5
baaadb4b50a7cabe244adde125b2ddf9

SHA1
b02f73ca99f620c93cff7f20f7ad61c3f7195fb6

SHA256
2aacf714f5857dc94b64aa74674275278334762fdb0b6e7b90911074ac8b0e30

SHA512
030f59e5ed0443b0cc4dd8e54a534fcacdfac1ea5845e581dfcdf8a3395223ca4a5546a4ab37d84796cfc94464717de1bbf2ede60a156a22824a06b259e29557

Download Submit
memory/4148-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4148-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4764-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4764-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4764-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download