f64f791bc818985e4bd084256dc57eaec55d78f549f0b4d0bc4079a6efe4379b

Analysis

max time kernel
137s
max time network
147s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 22:29

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General

Target

2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe
Size

36KB
MD5

e74702dcf0e1eaad306efe7fffe08ccb
SHA1

70fd7f543f64973fd38bce176f4ce6b08bb03573
SHA256

f64f791bc818985e4bd084256dc57eaec55d78f549f0b4d0bc4079a6efe4379b
SHA512

b9ae9ddc30229012a612c1bc8b063f0b4ab641a5a05880a17ba133d25677844cbdff2fef8d4a11da5b3170f0e136621cd9312f56ec12a710466cf6e89909f29c
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3O3:bxNrC7kYo1Fxf3s06gY3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120f8-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2232	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
1796	2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_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 1796 wrote to memory of 2232	1796	2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe	28
PID 1796 wrote to memory of 2232	1796	2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe	28
PID 1796 wrote to memory of 2232	1796	2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe	28
PID 1796 wrote to memory of 2232	1796	2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_e74702dcf0e1eaad306efe7fffe08ccb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2232

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
37KB

MD5
912156013029612988adbf2d3e015703

SHA1
ab4916d8d18d0bf1d6729b4242e4a77d91161b24

SHA256
b924a6b5377fc577ead9737f36dc98920f85251ad955862c765329b379dfa4e4

SHA512
b2779a5fc8c38bcdf8ded35db1c0342a02d4295a6df3d45ab65147da64ab394f27dd16dbd0dc1136cc70cf4d2b4b482d660887fca971bbb94302a02ee8c649d1

Download Submit
memory/1796-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1796-1-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1796-2-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2232-15-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2232-21-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download