206c603e007a0dc46edb36bd18eee13396e73ad8cc8b4ce6f3416b5074dc9cf3

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23-01-2024 19:51

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General

Target

2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe
Size

44KB
MD5

d316dcea62cfb6d29a5afddaa8a4dfd7
SHA1

09515950e309c1faa4a4eb231681a411235902e0
SHA256

206c603e007a0dc46edb36bd18eee13396e73ad8cc8b4ce6f3416b5074dc9cf3
SHA512

d0432be0f4acfdfc5fdf32a8d80804177833a663bd446c058c4bf658ba694c9bdedebf6aeb5d8be105994c91aadf77ccd97e8233de5af5a6282b3146e32262a7
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5q49:btB9g/xtCSKfxLIc/C49

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012308-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2264	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_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
1992	2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe
2264	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2264	1992	2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe	28
PID 1992 wrote to memory of 2264	1992	2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe	28
PID 1992 wrote to memory of 2264	1992	2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe	28
PID 1992 wrote to memory of 2264	1992	2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_d316dcea62cfb6d29a5afddaa8a4dfd7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1992
- 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:2264

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
44KB

MD5
2518cd71c07184343285998c54388944

SHA1
ecb2dac28fba9532f0ae1d72d0ee04080f4ea8fa

SHA256
9e79eee52c1e6f398cfb5a84c0464399854c6d578ea206d3f8012b8ef7cda26c

SHA512
28387a12c3f0db1ee701e1034e82f1e2d7ea83ba4619f04a0a972e367f70427f210954d9fdada86ac47242a004a0d5dff34ae15fa027c0bd2934ff59944b58cd

Download Submit
memory/1992-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2264-22-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download