1a1dda66386c1a3fc31c93db16f0f61f7bbfacb5d4ea7e5339f08f554cc37633

Analysis

max time kernel
134s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 04:41

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General

Target

2024-02-12_5f278f6666ee3198720dcc58177a7b95_cryptolocker.exe
Size

38KB
MD5

5f278f6666ee3198720dcc58177a7b95
SHA1

67354bf996e9a096fdca5c5ebe35422eaeede41b
SHA256

1a1dda66386c1a3fc31c93db16f0f61f7bbfacb5d4ea7e5339f08f554cc37633
SHA512

0a630cb7ccc34c21de8d175df4d51775ed63850119e4c826b1a47b9d98822456c18e2afa2c7ce7d298451aaf3713e2d94c0bb07fd398c5379bed2aa21f49f46a
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL8V:ZzFbxmLPWQMOtEvwDpjLeUq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002312c-13.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	2024-02-12_5f278f6666ee3198720dcc58177a7b95_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
5072	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 1120 wrote to memory of 5072	1120	2024-02-12_5f278f6666ee3198720dcc58177a7b95_cryptolocker.exe	85
PID 1120 wrote to memory of 5072	1120	2024-02-12_5f278f6666ee3198720dcc58177a7b95_cryptolocker.exe	85
PID 1120 wrote to memory of 5072	1120	2024-02-12_5f278f6666ee3198720dcc58177a7b95_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-12_5f278f6666ee3198720dcc58177a7b95_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_5f278f6666ee3198720dcc58177a7b95_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1120
- 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:5072

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
38KB

MD5
e37e214e604e436c2ae6fa2e02adf093

SHA1
b2d3ff7cc24a64346c89e1615076da23cb47b8ce

SHA256
5c747e59d0b3992e3f1b31247ee745a3367e2bdaa07220be906429c2db7d2ec5

SHA512
e5009653a6013572fd77a22901d64e303749cee408122f1ecebc048ab3426223ab3f1bef78a402478ef8328881cb775cf9c9ec0d1851a8da10a48b0444a0c186

Download Submit
memory/1120-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1120-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1120-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/5072-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5072-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5072-17-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download