bc777ad68b1a39000c466489d469b7252695ad9f43a1cfb780ee34ce174d840a

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 05:34

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General

Target

2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe
Size

39KB
MD5

cbc8168e040bdfa89a01eb69fad85e21
SHA1

cfd0c34f97aea72030b7118243dd6808e74345f4
SHA256

bc777ad68b1a39000c466489d469b7252695ad9f43a1cfb780ee34ce174d840a
SHA512

a2cc0a9dc835ad7131cb811272db2561c7f75e5a5955649dbbc63c5fc28de5391ce106a64bc939762262706804003ef331d4672a39c24b92beb88a2efb4c99f0
SSDEEP

768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axK3DF:qUmnpomddpMOtEvwDpjjaYaQR

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2452	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2824	2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2824-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0009000000012286-11.dat	upx
behavioral1/memory/2824-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2452-27-0x0000000000500000-0x000000000050F000-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	2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_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 2824 wrote to memory of 2452	2824	2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe	31
PID 2824 wrote to memory of 2452	2824	2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe	31
PID 2824 wrote to memory of 2452	2824	2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe	31
PID 2824 wrote to memory of 2452	2824	2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_cbc8168e040bdfa89a01eb69fad85e21_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:2452

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
40KB

MD5
59a8f271425ff55cbd383d266eedfdd8

SHA1
11843cca595fbe694ca733d69a8aadd608be785c

SHA256
86ee4c48b2343c857f13be68c6839501f755d45392e57fc9fefcff94e8873d4e

SHA512
a123e68c5f12707567d151f9506d923f6c20463bb5577883b51349da1734799d3010ff1af4132f644a5a1545970fe0e668c0e1c2b9cc8c149ff5db355d69ee88

Download Submit
memory/2452-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2452-19-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2452-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2824-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2824-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2824-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2824-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2824-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2824-16-0x0000000002740000-0x000000000274F000-memory.dmp

Filesize
60KB

Download