f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 22:41

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General

Target

f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe
Size

42KB
MD5

985cf6553b6810042f0409b0b58bac43
SHA1

182a5658e5d0bc393e0b49f21e7c4dce3f731290
SHA256

f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9
SHA512

b175f603ff469a6058cc2ff8b60266dca920d63291fc6b6b3c6a89c8100f9d494ede416aea4d5ac788316297121d427a2f5e4c2057265441a12403dc7e16c8ba
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8uYo0nrlwfjDUOl:bm74zYcgT/Ek70ryfjBl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2936-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2936-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000015b6f-13.dat	CryptoLocker_rule2
behavioral1/memory/2852-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2852-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2852	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2936	f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.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 2936 wrote to memory of 2852	2936	f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe	28
PID 2936 wrote to memory of 2852	2936	f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe	28
PID 2936 wrote to memory of 2852	2936	f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe	28
PID 2936 wrote to memory of 2852	2936	f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe	28

C:\Users\Admin\AppData\Local\Temp\f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe
"C:\Users\Admin\AppData\Local\Temp\f7601b08b75d1774f0bfe9bf69899b8194a85f4786c492a1fccf06f1e5f6ceb9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2852

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\hasfj.exe

Filesize
42KB

MD5
029b36e3b045560ccea2dc0f3b7dec3a

SHA1
9f9c3a52a689566dd13009e8342a94eb5fa625e9

SHA256
8456bdf4044e74cac1bd9cdde08798f1118f06a4d0acd43bce4c7a50c380a6a8

SHA512
ab49882cb460a7d2ee09794906db4ee03d98eff6305149ad6507ab24de5a0820881d5bd0a54a66801cf742e1eb7c24dfdb475b75037c85416591e4dd11e3b924

Download Submit
memory/2852-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2852-18-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2852-22-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2852-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2936-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2936-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2936-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2936-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2936-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download