8db3d77dea183a811687966214a99d7d156d76c66246d5c8adf97fd312873634

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 05:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe
Size

58KB
MD5

30241d46dbe946af3272e7cadc24b35f
SHA1

c5a498399ddd4fd9120ff45909ff3512f94fb342
SHA256

8db3d77dea183a811687966214a99d7d156d76c66246d5c8adf97fd312873634
SHA512

0c153b6062fff6d5320f108f3dd4bdf742998af7ede0cf96a7616d2606db031fd3dcadf1cc46f80117710f594ab3dd2fc87f2003f44068b8a82693db83a9d532
SSDEEP

768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlYrw:bP9g/xtCS3Dxx0LE

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2792	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2932-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x000a00000001225c-11.dat	upx
behavioral1/memory/2792-16-0x0000000000400000-0x000000000040E000-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_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2932	2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe
2792	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2792	2932	2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe	30
PID 2932 wrote to memory of 2792	2932	2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe	30
PID 2932 wrote to memory of 2792	2932	2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe	30
PID 2932 wrote to memory of 2792	2932	2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_30241d46dbe946af3272e7cadc24b35f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2792

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

Loading Replay Monitor...

Downloads

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

Filesize
58KB

MD5
e6973ad8922e38baf32833680482631f

SHA1
262b7b9735290183cfe5d2755d9eef71d57cec4c

SHA256
0cce007dd93301c683aba170a9cf6dff8e54d649c9975c0ff1e343592cef8da1

SHA512
a42cc7391603eb4280a7576c251b2f8d7ecf64f57007ea0f2e79d2398e844cb2080653e1bd2424e5977a95e71b26eb173470d5fc9e1bb62e4f4090c20c5ba9e8

Download Submit
memory/2792-16-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2792-18-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2932-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2932-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2932-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2932-9-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download