e13f4fca172aa3b74be11dfffdc55ec8ca3676d63b672c2525961875438015a9

Analysis

max time kernel
142s
max time network
157s
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, 18:33

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General

Target

NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe
Size

107KB
MD5

a88c4c310cc73af335113082fc15d7dc
SHA1

60859014fe545c2a6b75b2ccbab474b65939f7a2
SHA256

e13f4fca172aa3b74be11dfffdc55ec8ca3676d63b672c2525961875438015a9
SHA512

d9732cf0ec4797e52718f57abd353b07802840f92d9ba79c23a83de2c03b3838672fe62d1966258986ed2b15035935e8b361ba1c864282382ca8c194ffd88e65
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjCGYQbN/PKwNeIQ:T6a+rdOOtEvwDpjLz6

Score

7^/10

upx

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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
4872	asih.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3572-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3572-10-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0007000000022c8f-14.dat	upx
behavioral2/files/0x0007000000022c8f-16.dat	upx
behavioral2/files/0x0007000000022c8f-17.dat	upx
behavioral2/memory/4872-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 3572 wrote to memory of 4872	3572	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	84
PID 3572 wrote to memory of 4872	3572	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	84
PID 3572 wrote to memory of 4872	3572	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	84

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4872

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
107KB

MD5
ad84f457a8bb98a5999633a0b84a09b0

SHA1
0f827f63c0082ce2b249d0817599ac8f73e11224

SHA256
611283fca3a9755211b1577b72481ef57e2890d027351efc62d14dcfbb3f6118

SHA512
6d89ec4583065ca30aa38217317a230dfe7c34c0927361548c33d57a9a249c0f15a990b65f5923f78dfceb9231b990b5fe22910bd72e0a604d4fd8c2fe96ab37

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

Filesize
107KB

MD5
ad84f457a8bb98a5999633a0b84a09b0

SHA1
0f827f63c0082ce2b249d0817599ac8f73e11224

SHA256
611283fca3a9755211b1577b72481ef57e2890d027351efc62d14dcfbb3f6118

SHA512
6d89ec4583065ca30aa38217317a230dfe7c34c0927361548c33d57a9a249c0f15a990b65f5923f78dfceb9231b990b5fe22910bd72e0a604d4fd8c2fe96ab37

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

Filesize
107KB

MD5
ad84f457a8bb98a5999633a0b84a09b0

SHA1
0f827f63c0082ce2b249d0817599ac8f73e11224

SHA256
611283fca3a9755211b1577b72481ef57e2890d027351efc62d14dcfbb3f6118

SHA512
6d89ec4583065ca30aa38217317a230dfe7c34c0927361548c33d57a9a249c0f15a990b65f5923f78dfceb9231b990b5fe22910bd72e0a604d4fd8c2fe96ab37

Download Submit
memory/3572-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3572-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3572-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3572-3-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/3572-10-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4872-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4872-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4872-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download