aa52c135454ccf2a641237de4ad3100e02e042c5750417827cd0f507e5d41505

Analysis

max time kernel
140s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 03:34

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General

Target

2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe
Size

38KB
MD5

3321e1d00f081ded22b9a88a0b622864
SHA1

bb85c46aebf1d871b060be14efbeaf6d52ce4813
SHA256

aa52c135454ccf2a641237de4ad3100e02e042c5750417827cd0f507e5d41505
SHA512

64823fd1a628e433145910caaff1e6a9100c302d497b51aa079e3a0af387a461907bbd7588eacc4cf381b60a5e225eee11af7b5575c6eb05047cbdbdfa48c9c4
SSDEEP

768:qTVbxjgQNQXtckstOOtEvwDpjAaD3TUogs/VXpAPWz:qTJu9cvMOtEvwDpjppVXzz

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2960	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1552	2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1552-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000b00000001227f-11.dat	upx
behavioral1/memory/1552-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2960-26-0x0000000000500000-0x000000000050F000-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	2024-10-18_3321e1d00f081ded22b9a88a0b622864_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 1552 wrote to memory of 2960	1552	2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe	31
PID 1552 wrote to memory of 2960	1552	2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe	31
PID 1552 wrote to memory of 2960	1552	2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe	31
PID 1552 wrote to memory of 2960	1552	2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_3321e1d00f081ded22b9a88a0b622864_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1552
- 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:2960

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
38KB

MD5
3c24d6aa2831dd0fe4ffe7a6ef6de7e4

SHA1
4616b55fb0b09044f3de80a84588936b4e5e1705

SHA256
ca166704f5f62f1245995d554dc0e69140fb7c3e7c3a8bc5e7c4a276f7c268f8

SHA512
0899185fd0520599752b7bf14d270e8231d5a762e693175ef78e60fac764b2a445fd2ff22da1d6aa0058ebc3e64b42f831a17c05b618d3305756b5cd4cf0bd3b

Download Submit
memory/1552-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1552-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1552-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1552-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1552-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2960-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2960-25-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2960-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download