9919d30d8bfea039f051006d40310833cbc62e2dd887d40d294320859504982a

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 04:22

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General

Target

2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe
Size

92KB
MD5

6c6175bb43a9c5c20e316a3212793558
SHA1

1e1a9e53196802d4cdd81c69ca06f2f990f2664a
SHA256

9919d30d8bfea039f051006d40310833cbc62e2dd887d40d294320859504982a
SHA512

028e916b4d921d3d60a3633fba455a0b96acd36c2e6eb229abad23a03e1417cf30ca3ec06da5dc2f64d36a55f81258df4dc63ebe13013570a43af769b58db5e5
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgdd7:AnBdOOtEvwDpj6zf

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1300	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2476	2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2476-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2476-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000c000000014968-16.dat	upx
behavioral1/memory/1300-27-0x0000000000500000-0x000000000050F000-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	2024-09-03_6c6175bb43a9c5c20e316a3212793558_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 2476 wrote to memory of 1300	2476	2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe	29
PID 2476 wrote to memory of 1300	2476	2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe	29
PID 2476 wrote to memory of 1300	2476	2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe	29
PID 2476 wrote to memory of 1300	2476	2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-03_6c6175bb43a9c5c20e316a3212793558_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476
- 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: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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
92KB

MD5
75212e72b3df8faf4029e68c178b9a7d

SHA1
682e47851c4a3a5e8ba0dd0cb5d2ed9338b39196

SHA256
f79458112e03cbfd8636fe390897c66fe0b0ca8fbda8502aca22036259be7df8

SHA512
0066e347869e9739852994f6eb716b35c468c9943b117f3e155e99cd87b46c39b3bb6eebdbfd4b3b84509884441b62ddf70bd20f9a6419d76c4c0007f4a7c289

Download Submit
memory/1300-20-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1300-19-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1300-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2476-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2476-3-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2476-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2476-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2476-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2476-15-0x0000000002480000-0x000000000248F000-memory.dmp

Filesize
60KB

Download