53e0ef422be91a00ef1aefe10497f88599d72f454aa30ebae4547dbcad4b944b

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/02/2024, 16:31

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General

Target

2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe
Size

44KB
MD5

803d9dadf159938adeb83567648ab343
SHA1

71ddfc5728cee1db8dc8fcdd5c48505a28d1f366
SHA256

53e0ef422be91a00ef1aefe10497f88599d72f454aa30ebae4547dbcad4b944b
SHA512

82dbf5cb358eb4089405c3b58c1d973dd13f6405df5bb84f600ffc039b6ca132175a138b9283b65b41d308384f8c513ff938e4b85dd243ef58bf29855eac8e8f
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5z:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2208-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2208-13-0x0000000001DF0000-0x0000000001DFB000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012241-11.dat	CryptoLocker_rule2
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2208-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012241-11.dat	CryptoLocker_set1
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-02-27_803d9dadf159938adeb83567648ab343_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 2208 wrote to memory of 2056	2208	2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe	28
PID 2208 wrote to memory of 2056	2208	2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe	28
PID 2208 wrote to memory of 2056	2208	2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe	28
PID 2208 wrote to memory of 2056	2208	2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_803d9dadf159938adeb83567648ab343_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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
45KB

MD5
742e83926014d1124c9c4a7c5e298b14

SHA1
e2bdc867a653176f23e75c6a708644d444adea80

SHA256
6e35ee2716cb573f4508988af794c86134396573b75adf97d3d703966dfa9de5

SHA512
826587a7630275244a97d885b8bc03815b4c4129335c64f1687e2bf667cb624a58fe38e1329ada147bcc439533528f0d3d521349e21662814d7d29de8c6a0fd4

Download Submit
memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2056-19-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2056-21-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2208-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2208-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2208-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2208-3-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2208-13-0x0000000001DF0000-0x0000000001DFB000-memory.dmp

Filesize
44KB

Download
memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download