2140ee6e8b3ef924e58ad2ac7483ca61e1a638d1450fa29fd093766b406f7273

Analysis

max time kernel
131s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 16:11

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General

Target

2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe
Size

32KB
MD5

c77aed3d0e6204d50df54c4f3e12da02
SHA1

23f7b9a76c07bd65ba221e9fc551a4ad7bb8d2c0
SHA256

2140ee6e8b3ef924e58ad2ac7483ca61e1a638d1450fa29fd093766b406f7273
SHA512

0ffa18a512f817dffa6eeb8a1bc957bd0aee5d8a81e27de588afb703e9ff29f651ce19c5ae79b19dbd850c66c164ba8355d692febc3183667ba1c855ec5bcd7f
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7J:bAvJCYOOvbRPDEgXRcJd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002342a-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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1376	demka.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 1468 wrote to memory of 1376	1468	2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe	83
PID 1468 wrote to memory of 1376	1468	2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe	83
PID 1468 wrote to memory of 1376	1468	2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_c77aed3d0e6204d50df54c4f3e12da02_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1376

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

Replay Monitor

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Downloads

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

Filesize
32KB

MD5
69bd4c21072c3578d8a4913a487c6d6d

SHA1
ad878b58457d3e75deb711874a68773eb2431362

SHA256
19a45e99c41c79c352cee151be8f0946a7f7a67989024764bbe9238bc2698fb6

SHA512
2c643cf68ae925fb310a192b6198d35b209bccdc7cd46ced6c3956745bc7b687e2b5199a870a86062151397aa88ecc5ef2d02fa383816546f5311f2cd0b0fc76

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe

Filesize
186B

MD5
608d1067f181040d7a454bbaacf1fc58

SHA1
a9ad42cf50814bbcb2448ff43aac246fb80448af

SHA256
0de351ef0a1e13b0abe2b7a3e6de0edc77f6189cdf2e4c60a2910cc8af405e53

SHA512
0f316f35dd2c925c1adcfb050ce296c19a2221dc1a496a052cb048f41ccb444e234beb482cb21173d636408da4dc835b7dc746e95ad4ca8ffc965bf062eb81ac

Download Submit
memory/1376-25-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1468-0-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/1468-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1468-8-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download