66cd994ceb70eaaad58118fd7d93eefe4cea95333a1ffd09b1eed17558055f2e

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
08-03-2024 03:59

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General

Target

2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe
Size

34KB
MD5

ddfff4d000a0596b84f0b1640d3671bf
SHA1

a6f3d9a661ad910c9478b2e8b93ac3867ce3302a
SHA256

66cd994ceb70eaaad58118fd7d93eefe4cea95333a1ffd09b1eed17558055f2e
SHA512

e97d09743fb6e9580558a491bf98f09fc2bbbcf9a70344c72865e1fc40f6032098bd88d62f7affddd405281ba4ecc42426becef0982695681f6f4ac828b33811
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0q64:btB9g/WItCSsAGjX7r3BTf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3048	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_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
1740	2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe
3048	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 3048	1740	2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe	28
PID 1740 wrote to memory of 3048	1740	2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe	28
PID 1740 wrote to memory of 3048	1740	2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe	28
PID 1740 wrote to memory of 3048	1740	2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_ddfff4d000a0596b84f0b1640d3671bf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1740
- 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:3048

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
c0817d4b8f4244729bc73cce4b315a6a

SHA1
d154c5a5b6f80b250758de1bc4e0600140bf0fa9

SHA256
b2e8dc5ca338040e5698cb997c5bbccd5533083aa528189734d831de76dfade7

SHA512
ef311e09f95ade3aaf3e2b2415c847c994eebdb739dd09bdd347c5760f57ce77881c1198e200000caadec217535dcd7df36a68c3bb66491a8fccf19717e92fe5

Download Submit
memory/1740-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1740-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/3048-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download