8cff694342eab82d9e6a5ff1c41be1e61d18e31969b037defe720754c9e22d15

Analysis

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

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

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General

Target

2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe
Size

95KB
MD5

5b4c747ede5f0ce3958e38e6e80892d3
SHA1

ad93d41007ccb88cf53485b91ac9914eba81f9fe
SHA256

8cff694342eab82d9e6a5ff1c41be1e61d18e31969b037defe720754c9e22d15
SHA512

87b751c887748b28ec599450a4ba462c79fff7abc740bbe031bd6216916b39af5e4e6eb173cef6f2800060786a92126ece46d718eac980261dfda0ed2ba91788
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/kAdC:zCsanOtEvwDpjBg

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2980	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2156-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000700000001211a-11.dat	upx
behavioral1/memory/2156-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2980-28-0x0000000000500000-0x0000000000510000-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	2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2980	2156	2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe	30
PID 2156 wrote to memory of 2980	2156	2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe	30
PID 2156 wrote to memory of 2980	2156	2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe	30
PID 2156 wrote to memory of 2980	2156	2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_5b4c747ede5f0ce3958e38e6e80892d3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2980

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\misid.exe

Filesize
95KB

MD5
4962f41724ddcf22059763b5885b45ee

SHA1
b7bc8bd7aefddd0c466067e9122155530d8ab549

SHA256
3e30d09e65c253edc8894c4d0b2b2571cfeecd5ea2d2a91b65a377a8a00ffb50

SHA512
190620f66f206f886710ad42afa6cbf3806caa768824417358d549f7e2e03ad3acb27eb54a0b4a505142f50b63e11ca23bf9057b02e4748e8aaa601dc558bd9a

Download Submit
memory/2156-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2156-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2156-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2156-15-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download
memory/2156-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2156-27-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download
memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2980-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2980-26-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2980-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download