5b9f96c730f2d2ed136c4d00497912bba980640d6d18a3726b9880fecf730d6d

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/09/2024, 09:16

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General

Target

2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe
Size

90KB
MD5

c1401b9fa68706995020ce885487fbb0
SHA1

4422f8eb2850e89936bbc64790df598b0873ad55
SHA256

5b9f96c730f2d2ed136c4d00497912bba980640d6d18a3726b9880fecf730d6d
SHA512

433aefa256f0ddc5c1f082076886165ea3544bfdb81cfc1ed4e4c6659fb8b8283d7585a42d16e6bcc1cd9da0da88a82de70cb1db5051ac1c42dacaede44a107c
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAu:n6a+1SEOtEvwDpjYYvQd2Pu

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2876	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2272	2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2272-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c00000001226b-11.dat	upx
behavioral1/memory/2272-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2876-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2876-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2876	2272	2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe	30
PID 2272 wrote to memory of 2876	2272	2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe	30
PID 2272 wrote to memory of 2876	2272	2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe	30
PID 2272 wrote to memory of 2876	2272	2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-13_c1401b9fa68706995020ce885487fbb0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
90KB

MD5
dbf36bcbe8e3f56e2758077d7e6f460f

SHA1
6997c8b66b8b2ebfe81522a2b62d98a436d16211

SHA256
50d3c2af10bd469303378da5e509ef4f69adf0a80511adca8fd3e2a394f52052

SHA512
f073bc4c4a01eb47ffcfc3f1051b717869959a6a59e9417151f525ddcc7131e000e6ccf1a304d9e422af6b8060e02b295cb9fdd40eab458df0d3dbb800832c7f

Download Submit
memory/2272-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2272-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2272-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2272-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2272-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2272-13-0x0000000002840000-0x0000000002850000-memory.dmp

Filesize
64KB

Download
memory/2876-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2876-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2876-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2876-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download