481a1c0d13c0b6f1edbb6d293310ac88f07211d8f47be9ddcb040f5455507b48

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 18:36

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General

Target

2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe
Size

50KB
MD5

ac7930d5fa6bc78b6923e6548ad4364b
SHA1

16fc41a2b535a40b67f2fa295615da35157abe73
SHA256

481a1c0d13c0b6f1edbb6d293310ac88f07211d8f47be9ddcb040f5455507b48
SHA512

4e39c9e909bc0e7a3c928c13b1e4fd1b9ad4c761f0351071ba7aff768c0fb7a94c2c3252efc28805e25db6a06b9e5537fd30db54f607e10829fa8baab0d216d3
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSO5D:bgGYcA/53GAA6y37Q6dI+d5ID

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001225e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1664	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2176	2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_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 2176 wrote to memory of 1664	2176	2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe	28
PID 2176 wrote to memory of 1664	2176	2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe	28
PID 2176 wrote to memory of 1664	2176	2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe	28
PID 2176 wrote to memory of 1664	2176	2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_ac7930d5fa6bc78b6923e6548ad4364b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1664

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\hasfj.exe

Filesize
50KB

MD5
1ec1184ad3773c2697b4de33373adfbd

SHA1
e056c664d26aa01060e05202aecbd1eeab4883d5

SHA256
7428c28aac5ff67243ee8f1cbfb429e723db04e438bfdfa02666e2eb85284a9b

SHA512
6d6c438feab23aa9d4bb3b7dd6c77316fa877fad7067d9a1a8a38f89a79f34470395d76846ff838b030ab5194c37c39ce80d4473a96a2f99bf6b6ea6dfc92255

Download Submit
memory/1664-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1664-20-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2176-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2176-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2176-4-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download