2f21df43f92490fd774b82ed58369a4f942db7bd5be2a75111025d50153c426f

Analysis

max time kernel
133s
max time network
149s
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, 19:23

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General

Target

2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe
Size

59KB
MD5

4f27026f7924caf742d6a7b7f970c872
SHA1

d440803a63ebba428f27d9636dcac6433cedbe40
SHA256

2f21df43f92490fd774b82ed58369a4f942db7bd5be2a75111025d50153c426f
SHA512

e116fa2aaddee0c61435d975e2af2df46084fd98eb9e7c1f93abb6ad4bd641902e6ea191fdc271112dd230462c4585d4b625360b0ee19b2131ef7c4ddcc188df
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBhn:ZVxkGOtEvwDpjI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023145-12.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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4988	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 2216 wrote to memory of 4988	2216	2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe	85
PID 2216 wrote to memory of 4988	2216	2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe	85
PID 2216 wrote to memory of 4988	2216	2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_4f27026f7924caf742d6a7b7f970c872_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2216
- 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:4988

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
59KB

MD5
7ee602dfad9cfc37a9f874a1ebaf6b65

SHA1
48665d915ccf00facad37e836a9baf036daef549

SHA256
bb980cdb8a63a25652959b338b5d288de3e8ce133cae76759ccac718a3e1ab49

SHA512
4f3acd45d1e13210aac4860b0569c75d02c58572f793e6dc1cdb1b02901596edc33edf8ac33f1d77c7b4424aaf2b06fbb428fb21e10798dbd420e3f1e06dbacd

Download Submit
memory/2216-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2216-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2216-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4988-16-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4988-18-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4988-21-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download