2ec9e8fa7709afb11a3e15152ee01049dea1854001469a9e7f05078eac00e83d

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 02:29

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General

Target

2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe
Size

64KB
MD5

2596685510f291e5fd4bd689f9040987
SHA1

1c77f560d5d2b8c7970e01c7d136b09dbc6c2a2b
SHA256

2ec9e8fa7709afb11a3e15152ee01049dea1854001469a9e7f05078eac00e83d
SHA512

d5449860f95bc49d6a7f267e3e2be2403edbfd52ef2d5a1da6486a1f4b77a34eaea04e1d99819dad43c106fa661e2d98a836d3d9b2a5e486d0607375ece14725
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzo7:X6a+SOtEvwDpjBrOu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a88-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a88-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2480	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1856	2024-04-25_2596685510f291e5fd4bd689f9040987_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 1856 wrote to memory of 2480	1856	2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe	28
PID 1856 wrote to memory of 2480	1856	2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe	28
PID 1856 wrote to memory of 2480	1856	2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe	28
PID 1856 wrote to memory of 2480	1856	2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_2596685510f291e5fd4bd689f9040987_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2480

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
64KB

MD5
17a4031ab0f0efedf84fafcbde6d7460

SHA1
ee3ba0915ce08358332d1e8646d13ac95b3ec2c6

SHA256
87d899bf50527003824f1323fff63a372b1a1e264f53dd6dcb4a0003110a6ca2

SHA512
83b1c251282fe39168a75b60b351eaf44f2577ccc04eaf30f4ec399a8199ead24e5b84050f03c1969cc35b8ca2bbd2d30afb6b0fbd1a052526425424de7fd10c

Download Submit
memory/1856-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1856-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1856-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2480-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2480-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download