5e026dbd344969636d95e0dc559fff9ec353fea0e4cd16276a38ed27d6f357f9

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 05:12

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General

Target

2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe
Size

42KB
MD5

d725755fbb10f0e9a530bd6dba3f90a8
SHA1

ea4e9fb5ddfdf5657cd42601dd36400957da2e66
SHA256

5e026dbd344969636d95e0dc559fff9ec353fea0e4cd16276a38ed27d6f357f9
SHA512

23fcf02910fd0b7379083a2f21487c9b4f380357ba34e26355a24e541c46aa994c8be04f4ec988739986b3d92b2f433ac0714fadeedc22bf7b0a4d9344300a15
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZWQpyN:btB9g/WItCSsAGjX7e9N0hunrknlO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023111-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1656	gewos.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1656	1644	2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe	86
PID 1644 wrote to memory of 1656	1644	2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe	86
PID 1644 wrote to memory of 1656	1644	2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_d725755fbb10f0e9a530bd6dba3f90a8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
42KB

MD5
700124749b1220c8425b875929818c2d

SHA1
a727cdec326a156e2b73d4e58972cebae8110d02

SHA256
61c8aa5751dec6512905b390ab217d4d86e906b358780a683c0c781ac7b83c8a

SHA512
e96ed881d548687d736c059f6066aa3755a8d3ef581219dee538fd300a6f4a551c79a50ad70145be2101bc45acb8e8aa71a1cbf182cf14008de1bd935bf490d1

Download Submit
memory/1644-0-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/1644-1-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/1644-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1656-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download