3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/06/2024, 20:18

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General

Target

3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe
Size

43KB
MD5

46655e35b9dc79e96ae4203779575e8b
SHA1

c0ba6ba63849543da7fb5cfd90dc3843e00871ff
SHA256

3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52
SHA512

bab21612aaf8b89609b2a40a4c1a54e5af0c8927d48f9bb674014564eb6a3ef27e84031a73611ebea77e23f25359670edc5347b88e419bf10f3b3a50a8be788f
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL7vF1Tw:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2188-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001313a-14.dat	CryptoLocker_rule2
behavioral1/memory/2188-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2188-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001313a-14.dat	CryptoLocker_set1
behavioral1/memory/2188-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3044-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3044	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.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 2188 wrote to memory of 3044	2188	3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe	28
PID 2188 wrote to memory of 3044	2188	3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe	28
PID 2188 wrote to memory of 3044	2188	3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe	28
PID 2188 wrote to memory of 3044	2188	3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe	28

C:\Users\Admin\AppData\Local\Temp\3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe
"C:\Users\Admin\AppData\Local\Temp\3bd5b28160eb1684561930c023d5b3b2893cd828ce9411df09e2921f67530e52.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3044

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
44KB

MD5
8f587011d167c757c3a0498667e4b095

SHA1
cea85951c23e96977a1a87b871d27243364f6747

SHA256
fd35eb8b9fffec204ec84fe59f4c905b752e76df15401cbb3a518a257ebaccc9

SHA512
d238c79db2efe03053bc499d6063aecc9abe471957417a61d3fe4d9502db22230c5fead8c8a6ae8f22c86f14c0e717c7dbe05d4941fe702d4356b875505151ff

Download Submit
memory/2188-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2188-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2188-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2188-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2188-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3044-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3044-18-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/3044-25-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download