ee4f585baa124a5c4a84ea83c04663970570029d43747c1ad0e29ead91772d5e

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-04-2024 13:30

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General

Target

2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe
Size

45KB
MD5

aa3d4bc4abed726b03ba43f51fcf572e
SHA1

492ba74d8ed959a70b3bf8867084855532974a7c
SHA256

ee4f585baa124a5c4a84ea83c04663970570029d43747c1ad0e29ead91772d5e
SHA512

393df9eb79aa86e9d27695c36b90e57fe6eb5c2cb4b8629e25945b25d87df3f573b84c39a7f2eda5bd1c4978673b8304c31da8c1b7c56d1bc8c0f68b8c850d9d
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPND:P6QFElP6k+MRQMOtEvwDpjBQpVXED

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1612-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_rule2
behavioral1/memory/1612-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2700-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2700-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1612-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_set1
behavioral1/memory/1612-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2700-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2700-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2700	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1612	2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 2700	1612	2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe	28
PID 1612 wrote to memory of 2700	1612	2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe	28
PID 1612 wrote to memory of 2700	1612	2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe	28
PID 1612 wrote to memory of 2700	1612	2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_aa3d4bc4abed726b03ba43f51fcf572e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
45KB

MD5
be2e6329637b794b27fd0d051881f95b

SHA1
80d28ef0bedf4ecf0fa5593733cd1c47b256f371

SHA256
13a548f732972a273c360bed3df4b34dc70f0cabc6ddfb4a5002422300830e00

SHA512
483974fcd4f92930e84e1fa3d476cfc2d00ff21312443cc259801570179fae6c343474f32d56d56ff08feb23055fa21bfb768e439bdca06de694d3f11db4db36

Download Submit
memory/1612-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1612-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1612-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1612-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1612-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2700-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2700-18-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2700-21-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2700-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download