e13f4fca172aa3b74be11dfffdc55ec8ca3676d63b672c2525961875438015a9

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

pid	Process
2728	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2136-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00060000000120bd-11.dat	upx
behavioral1/memory/2136-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00060000000120bd-15.dat	upx
behavioral1/memory/2728-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00060000000120bd-24.dat	upx
behavioral1/memory/2728-25-0x0000000000500000-0x0000000000510000-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 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2728	2136	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	28
PID 2136 wrote to memory of 2728	2136	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	28
PID 2136 wrote to memory of 2728	2136	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	28
PID 2136 wrote to memory of 2728	2136	NEAS.2023-09-05_a88c4c310cc73af335113082fc15d7dc_cryptolocker_JC.exe	28

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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2728

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

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
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
107KB

MD5
ad84f457a8bb98a5999633a0b84a09b0

SHA1
0f827f63c0082ce2b249d0817599ac8f73e11224

SHA256
611283fca3a9755211b1577b72481ef57e2890d027351efc62d14dcfbb3f6118

SHA512
6d89ec4583065ca30aa38217317a230dfe7c34c0927361548c33d57a9a249c0f15a990b65f5923f78dfceb9231b990b5fe22910bd72e0a604d4fd8c2fe96ab37

Download Submit
memory/2136-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2136-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2136-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2136-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2136-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2728-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2728-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download