3b6902625e1ba482b0604f4f1d3d74b2e6fa8e4249e3ad6f0a2b7555a2f0551e

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 21:44

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General

Target

2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe
Size

60KB
MD5

f707d327f6383d30293e44883cfea44d
SHA1

2b80e715dd28b7cbc9c776da6236cb409f4ecb6b
SHA256

3b6902625e1ba482b0604f4f1d3d74b2e6fa8e4249e3ad6f0a2b7555a2f0551e
SHA512

b528f6d50bce291422328b8d639f0ccab6155c1538100525530efb2330206a2e50fdad19690a2fe88c98a74c51b17fe2f8d4be74231a8551fa01f8e96af31ccd
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EM4:TCjsIOtEvwDpj5HE/OUHnSMn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2512-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00070000000122c9-11.dat	CryptoLocker_rule2
behavioral1/memory/2512-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1608-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1608-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2512-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00070000000122c9-11.dat	CryptoLocker_set1
behavioral1/memory/2512-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1608-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1608-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1608	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-02-13_f707d327f6383d30293e44883cfea44d_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 2512 wrote to memory of 1608	2512	2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe	28
PID 2512 wrote to memory of 1608	2512	2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe	28
PID 2512 wrote to memory of 1608	2512	2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe	28
PID 2512 wrote to memory of 1608	2512	2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_f707d327f6383d30293e44883cfea44d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1608

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
60KB

MD5
41554744602170a63b05900edb7b68c8

SHA1
ba55bf61d92932a6d9bb7a328884cd2b20dd5007

SHA256
7bbb10ba334140c5c618384eabc218366416b80e5bcecc96e4263e5e6061e6d9

SHA512
0ed69837b50697f27597a05768723039cb4c596bb585117b90c5445c43f5fcd6743de118304537dfebf8a56f20f8391d54f11af883b8508b69fe68e6600bc402

Download Submit
memory/1608-19-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1608-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1608-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1608-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2512-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2512-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2512-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2512-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2512-16-0x0000000002880000-0x000000000288E000-memory.dmp

Filesize
56KB

Download