9f82c91512829bcd7dca8bc7c847accc10bd3b68a42eeba5c9b20408026bd93b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 00:43

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General

Target

2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe
Size

82KB
MD5

9f3684ea47da41baa6ec5f14c812ed5c
SHA1

73d2f75a772bc28de0741fbfe8c946fb6213cc4d
SHA256

9f82c91512829bcd7dca8bc7c847accc10bd3b68a42eeba5c9b20408026bd93b
SHA512

ab4b10b73cfe897d467c4eac75e6bb1f57dce0f51b063c3b6326c361a1dc6fad59d55b241ec3338a27978afa74bdd545be3e4278b7713a0d4d8789479e19c8bd
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnd:V6QFElP6n+gMQMOtEvwDpjyaLccVNlb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122c9-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122c9-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
624	2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_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 624 wrote to memory of 2672	624	2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe	28
PID 624 wrote to memory of 2672	624	2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe	28
PID 624 wrote to memory of 2672	624	2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe	28
PID 624 wrote to memory of 2672	624	2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_9f3684ea47da41baa6ec5f14c812ed5c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:624
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2672

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
82KB

MD5
7cefcb1ddc1e243504515285f962d3fb

SHA1
78fdc33f66e901f38cbd53d6f59ac175b479033c

SHA256
d6bb8b09b9202d1e3fc91802e1c8752b82f5106ab861410322e57f5401149d0f

SHA512
24f6b22bb1b2ae2d1c22adc46bc60d6a395cfe0bfb7d03620809a78b2bc83c2078892f8643153c465739b645e9413cc6f726cd51fa71a08a603320352475d866

Download Submit
memory/624-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/624-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/624-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2672-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2672-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download