a8ccf574b0357823dc2b9be7ed9d9fc216619cd6c126d4ee9106b6de60cfefbf

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 04:30

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General

Target

2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe
Size

85KB
MD5

844d240fae1e85902588ac0d8e6069f1
SHA1

b998a7b487eee4a7eabe0ba96ec3abe739e4460a
SHA256

a8ccf574b0357823dc2b9be7ed9d9fc216619cd6c126d4ee9106b6de60cfefbf
SHA512

8549c55dfcfe2a4f2e85118e2fad7f32a4894d4b23670e891865669a6b3d375687c76c5a0ef9deaf26202624ddaf04224b242202c71f1174b0cab0d41a30b76c
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrC+v:TCjsIOtEvwDpj5HE/OUHnSM5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000013143-11.dat	CryptoLocker_rule2
behavioral1/memory/2204-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2872-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2204-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000013143-11.dat	CryptoLocker_set1
behavioral1/memory/2204-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2872-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2204-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2204	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-05-23_844d240fae1e85902588ac0d8e6069f1_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 2872 wrote to memory of 2204	2872	2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe	28
PID 2872 wrote to memory of 2204	2872	2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe	28
PID 2872 wrote to memory of 2204	2872	2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe	28
PID 2872 wrote to memory of 2204	2872	2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_844d240fae1e85902588ac0d8e6069f1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2204

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\misid.exe

Filesize
85KB

MD5
050c4c237eca4faee236a9a1d050af32

SHA1
44364d6a951dea128342e66cf63c9b974998368c

SHA256
b0cdab21660ed29bcfe3be2cf725478bfc2852208fbcfa250a4d9f6521340a31

SHA512
0a965fb7c856fb06e17665b05f0128f9e07a41525d44a553f4deb283daa085730da421748ea10a323f7c06c01a67609bb80b9d57313cc6f2746492055a2e468b

Download Submit
memory/2204-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2204-18-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2204-25-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2204-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2872-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2872-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2872-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2872-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download