e1fd023a790a88a0fc4d32d0f90c4f8bd35310da2de3f2e2298164be5269282d

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 09:42

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General

Target

2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe
Size

82KB
MD5

a5d997dafbfd86a0431b70f5dc664612
SHA1

940b01592d843f1d089455ec66f4832eac28ed78
SHA256

e1fd023a790a88a0fc4d32d0f90c4f8bd35310da2de3f2e2298164be5269282d
SHA512

8d8b141f8c3426d2dd5a57fd53976b90c0ad0e2304911a142e3a41b39082308aa9c0bf6acf0fe573dbb3e02282322e729c058763d14c1d29d9fa7729f822ad96
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPne:V6QFElP6n+gMQMOtEvwDpjyaLccVNl0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122be-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122be-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2444	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	2024-02-17_a5d997dafbfd86a0431b70f5dc664612_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 1624 wrote to memory of 2444	1624	2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe	28
PID 1624 wrote to memory of 2444	1624	2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe	28
PID 1624 wrote to memory of 2444	1624	2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe	28
PID 1624 wrote to memory of 2444	1624	2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_a5d997dafbfd86a0431b70f5dc664612_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2444

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
aba764067024d2e9693014686c0ca8dc

SHA1
f13e787dced522c50984360c503a77e5d212a516

SHA256
3d68357a93fc41890811110f135ca97f0673d11d22475b5977933eb54303b74f

SHA512
4c2734f7865d55ebbeb55261eb546bc7b05e72ce796ad5c5a2f46bba5f8d4277d7d0200dd2b41b79e940f7b1c3fc3f3103aabc06592669e886279ee21db954de

Download Submit
memory/1624-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1624-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1624-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2444-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2444-22-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download