1e89b1b457fcdaa72ab7176575641b0fdc020b5ff9e4442cbf46e8c1583135ac

Analysis

max time kernel
140s
max time network
145s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-01-2024 12:53

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General

Target

2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe
Size

33KB
MD5

e813d343211c66720ea7b63c43bb0824
SHA1

6878fb1a67ad83487a0623b498ba4b6027613e86
SHA256

1e89b1b457fcdaa72ab7176575641b0fdc020b5ff9e4442cbf46e8c1583135ac
SHA512

0321e3f6fdbce480d7b9139ffa5394e33adc1224ff399601b9e9198f1ceeb1550153f7a1b67d84d8d14bf86f8d116df845e83ce145acdc6bf2f30f3967d19851
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7+0:bxNrC7kYo1Fxf3s0Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014a5b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2796	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-01-28_e813d343211c66720ea7b63c43bb0824_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 2232 wrote to memory of 2796	2232	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	28
PID 2232 wrote to memory of 2796	2232	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	28
PID 2232 wrote to memory of 2796	2232	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	28
PID 2232 wrote to memory of 2796	2232	2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_e813d343211c66720ea7b63c43bb0824_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2796

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\pissa.exe

Filesize
33KB

MD5
8804edaebf580603c394b948e4c87670

SHA1
ce7310c98754ca0dd95eca5e4944fb4ca3dd38ca

SHA256
bb1ea4ba4dbdfe3ab40b6385f08d0c8b8ac6822fe59e33267ed72a5a207b4630

SHA512
e475919d252f0aa694216f45dd1672865f94d33a118249b324d15755ef5fe1b1e52fa18888ca378301803e23ba2848fe918485b6a164f5401c74b059d98045ce

Download Submit
memory/2232-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2796-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2796-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download