78c9974c24e83870d0c30aeef3ec1a4a65ec61f61230f88c2c97d800b3bcffec

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 07:26

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General

Target

2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe
Size

34KB
MD5

27e5ce51cfb96ef6efe3531e285df54b
SHA1

04429a1bbb0605d46329e4f33266724cf64c42c7
SHA256

78c9974c24e83870d0c30aeef3ec1a4a65ec61f61230f88c2c97d800b3bcffec
SHA512

026f3cb65360d9bb9a4dfa79344480eea9b6ed8ebcd2c118ebbfe46f54afac48b7cec226e17cfa6a5f1471b87bfe817fa415b2fbc71e6074fb6ebfe4130cb451
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qPp:btB9g/WItCSsAGjX7r3BTPp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001220a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1684	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2200	2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe
1684	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 1684	2200	2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe	28
PID 2200 wrote to memory of 1684	2200	2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe	28
PID 2200 wrote to memory of 1684	2200	2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe	28
PID 2200 wrote to memory of 1684	2200	2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_27e5ce51cfb96ef6efe3531e285df54b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1684

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\gewos.exe

Filesize
34KB

MD5
3707f20efe16c367bcc4ea67e2194377

SHA1
274974bc54cabf0a566a78e554f31dc641ad1e30

SHA256
73f6efd4f93d76dadcff6042c09481a8c912ac3219ce3bf7a1ebd8a1a3c0ae9f

SHA512
01737f417aa458168b504b4633c1ae0abc382d7d79040915298a4d213005b7195ac3bd681a8facddb2349b2ead12599f25d239a3e57229775f682dc39285351a

Download Submit
memory/1684-21-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2200-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2200-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2200-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download