c93830501a2d3c03ff515eba050be8a0314bf2ed4c5c0dcd83e120a4a3ca3262

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 03:31

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General

Target

2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe
Size

47KB
MD5

54b108afa4eb13dcc969b14e289c5141
SHA1

06fb21b4950af645c5fbcfe167427526b16c44ff
SHA256

c93830501a2d3c03ff515eba050be8a0314bf2ed4c5c0dcd83e120a4a3ca3262
SHA512

714c18874f76237411064f542811aac71e90d7c3e4bc5a4a930dd8bef5b5179419957ccc2b51354bc72c391a200056b493adbd69a036e3efd38bb967dd52e650
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0STX73OBqOD:bODOw9acifH+YI

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2540	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2352-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/files/0x0008000000012101-11.dat	upx
behavioral1/memory/2352-15-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2540-16-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2540-26-0x0000000008000000-0x000000000800F000-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	2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2540	2352	2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe	29
PID 2352 wrote to memory of 2540	2352	2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe	29
PID 2352 wrote to memory of 2540	2352	2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe	29
PID 2352 wrote to memory of 2540	2352	2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_54b108afa4eb13dcc969b14e289c5141_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2540

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

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

Filesize
47KB

MD5
50887b62954fc5009d76a3a6743049fa

SHA1
95d836d13dc81b6953ecdefc7b99854512edbcb4

SHA256
e4038c68fbd4fae46f26134393e5d8a7dab7749319aa1d9326d120dbd1233901

SHA512
b250be8af96f1f9921bae33dfd54649d3a5ab31ca8b58b7af6df705a5d43f7a95e668df3250f0842a9dd555b36121101f29a19ed02ea02643cd68e81c9afa89b

Download Submit
memory/2352-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2352-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2352-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2352-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2352-15-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2540-16-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2540-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2540-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2540-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download