5942488726f7b61676fd8f0f33ec735de78ec7cd6b63d9264d627a38520dda7c

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
23-10-2023 20:49

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General

Target

NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe
Size

56KB
MD5

77cf0f76a146e410d3486300b24fa2f1
SHA1

fd64cb639cfc16d28d7586014e55699687f745c8
SHA256

5942488726f7b61676fd8f0f33ec735de78ec7cd6b63d9264d627a38520dda7c
SHA512

f3df4e783254f8ec73bc88248cfd96c1643c81985eb789d4fbbbbd5337fcb79d5a895e0eb524875433744c8c9e3a177894a87a100e8201ba8014b159504d7c1e
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSb5:BbdDmjr+OtEvwDpjM8d

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-1114462139-3090196418-29517368-1000\Control Panel\International\Geo\Nation	NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
736	asih.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 2040 wrote to memory of 736	2040	NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe	79
PID 2040 wrote to memory of 736	2040	NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe	79
PID 2040 wrote to memory of 736	2040	NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe	79

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_77cf0f76a146e410d3486300b24fa2f1_cryptolocker_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:736

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\asih.exe

Filesize
56KB

MD5
d3529a1c5750607c5d27d486c16c7a65

SHA1
a22101108aae3dad03f48d22a9d40a267981ad81

SHA256
493aabeec70974f525f521ef990ef04966227db5868fb4212e0bea5f9e3e4200

SHA512
4829b4f581c3905d7086acbca4aa5501b688bbbf0500de0b40f32d80a84a421a55c4217b8860a935bd55b3b9bbd998ef3178a24fa78e64b46691a1d6cf2622a5

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

Filesize
56KB

MD5
d3529a1c5750607c5d27d486c16c7a65

SHA1
a22101108aae3dad03f48d22a9d40a267981ad81

SHA256
493aabeec70974f525f521ef990ef04966227db5868fb4212e0bea5f9e3e4200

SHA512
4829b4f581c3905d7086acbca4aa5501b688bbbf0500de0b40f32d80a84a421a55c4217b8860a935bd55b3b9bbd998ef3178a24fa78e64b46691a1d6cf2622a5

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

Filesize
56KB

MD5
d3529a1c5750607c5d27d486c16c7a65

SHA1
a22101108aae3dad03f48d22a9d40a267981ad81

SHA256
493aabeec70974f525f521ef990ef04966227db5868fb4212e0bea5f9e3e4200

SHA512
4829b4f581c3905d7086acbca4aa5501b688bbbf0500de0b40f32d80a84a421a55c4217b8860a935bd55b3b9bbd998ef3178a24fa78e64b46691a1d6cf2622a5

Download Submit
memory/736-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/736-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/736-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2040-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2040-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2040-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2040-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2040-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download