78e4b61f09911b5a725cf599a6f9a0207ae5e111fadf0bbc8febe79e07c50d65

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
04/07/2024, 12:24

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General

Target

2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe
Size

59KB
MD5

1080acfbd9a77995976c3c7e26f7580a
SHA1

cb0907b3b33290054ebcd904c72917b6939d2ad2
SHA256

78e4b61f09911b5a725cf599a6f9a0207ae5e111fadf0bbc8febe79e07c50d65
SHA512

9eefebe64cf49eb1d9246aeac62847b22cfcfea2c2361d0564539b4fb92f0e8019ec9486b6efd26914ce1b9216a0479912522a0ed423a9683a7c90fb028ae91a
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5ax+Nz:z6QFElP6n+gKmddpMOtEvwDpj9aYas

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1300	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3016-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d00000001226b-11.dat	upx
behavioral1/memory/1300-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3016-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1300-26-0x0000000000500000-0x0000000000510000-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 4 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1300	3016	2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe	28
PID 3016 wrote to memory of 1300	3016	2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe	28
PID 3016 wrote to memory of 1300	3016	2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe	28
PID 3016 wrote to memory of 1300	3016	2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-04_1080acfbd9a77995976c3c7e26f7580a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1300

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

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

Filesize
59KB

MD5
d9137128a0a1b1dd8f87845a8f2987ea

SHA1
26da9e3fbb85b090c47bf461ca54000d6564c6b9

SHA256
89da8378487f2b9b604b8b43a919e0f1ebacdc1998b4e0ea099fc2a2b1983b03

SHA512
f67e72ff440d3d58e62fe158432b39fbd817d5a1680e48b9c895edfc174a4deeec04b9013e9540997965d288afd3d09d5549116c5ffb2db7c54bd8aa039593b3

Download Submit
memory/1300-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1300-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1300-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1300-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3016-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3016-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/3016-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/3016-3-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3016-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download