d4ffb544ca06b275ef2e20fa723054148335e627eae739ca46abbbfd189debcc

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 02:41

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General

Target

2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe
Size

50KB
MD5

c57e4df4a677abf4bf9dd5c0beca70c4
SHA1

6bc2409c206db5cba1cd7113f16c65f2620b1c43
SHA256

d4ffb544ca06b275ef2e20fa723054148335e627eae739ca46abbbfd189debcc
SHA512

286b6d4fc6602c26f2b756c087a55b6cde5d97dedb616c0e85dbd73a41b5d57c53bada1863a74642e773c5b4fe4d1aaa11799f87ed585b3ae2e2567c81cd0e28
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9gE1NIo:bIDOw9a0DwitDZzwIo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2212	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_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 2536 wrote to memory of 2212	2536	2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe	28
PID 2536 wrote to memory of 2212	2536	2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe	28
PID 2536 wrote to memory of 2212	2536	2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe	28
PID 2536 wrote to memory of 2212	2536	2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_c57e4df4a677abf4bf9dd5c0beca70c4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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\lossy.exe

Filesize
51KB

MD5
719a03c278a8f9445024ee18888a9a1c

SHA1
74eb8ae62104f6d4e281cc7aaf3d7fc18fabf33c

SHA256
1ba40a0134ea99e363bc2a044d147b6804c65a7619878e41ad316eab270a758c

SHA512
162ed77ea42b7fe5ae94592cb32ed710855559c2138f8a960122565cb8095c4634b8f1a840442d3fec8e3bedbb7b353554eee82bf768d9d32a5371c12244822c

Download Submit
memory/2212-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/2212-22-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2536-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2536-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2536-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download