69970f9a93dcf98b67c579644bb589601941b2fe3cdeac77a97c32a285b7233d

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/10/2024, 05:25

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General

Target

2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe
Size

62KB
MD5

55c6c37110cf7a5c736beba8c244ad2a
SHA1

fd55b8e03a7ec11088b1ab74ea37a504132cbcb6
SHA256

69970f9a93dcf98b67c579644bb589601941b2fe3cdeac77a97c32a285b7233d
SHA512

63f243f252058a0dc17fac596d1474c3b941d7151b63c1278f0b3c0aa0c5341c5cb62edd3826037e10fb73f25ff5c0e0ff105b8db62c66f541fe8a581f22ccad
SSDEEP

1536:H6QFElP6n+gou9cvMOtEvwDpjCpVXhh75:H6a+uSEOtEvwDpjq

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2224	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2712	2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2712-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0005000000011c2f-11.dat	upx
behavioral1/memory/2712-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2224-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2224-28-0x0000000000500000-0x0000000000510000-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	2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_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 2712 wrote to memory of 2224	2712	2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe	30
PID 2712 wrote to memory of 2224	2712	2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe	30
PID 2712 wrote to memory of 2224	2712	2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe	30
PID 2712 wrote to memory of 2224	2712	2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_55c6c37110cf7a5c736beba8c244ad2a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2224

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

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Downloads

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

Filesize
63KB

MD5
ff7cf7fd739ad64c18090b12b1862bc2

SHA1
ef883bbd5142499e341b3e9bd50a8907062c787c

SHA256
17c62ab1dc82a9ad10e2c1570386183d4fa52129d292dd74f5dc62ddebe0e5f6

SHA512
0f1208084140aa2b09ec13a6b3968221f4a02eb264304def118e88f471f7a4c6aeef16b4f10f70f9a99b1ce2510ee6cd34e7b18ed13a5340fffd24a9876b1e4d

Download Submit
memory/2224-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2224-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2224-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2224-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2712-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2712-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2712-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-15-0x0000000002840000-0x0000000002850000-memory.dmp

Filesize
64KB

Download
memory/2712-27-0x0000000002840000-0x0000000002850000-memory.dmp

Filesize
64KB

Download