abe34a525fe6ed5ffbdbd0ac985004aa6bd392a1d77a9a28060067c333886052

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 11:33

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General

Target

2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe
Size

40KB
MD5

ef007e8545cf42d74ae526b66356e53c
SHA1

008e5daa2f8dbae55a7f0d913a588521e4c22020
SHA256

abe34a525fe6ed5ffbdbd0ac985004aa6bd392a1d77a9a28060067c333886052
SHA512

2ecf7d101a7871bb21b9e56c20d223ff639d17be008a791a5c8b906d1713aea8a55a64e57fb68a22b0a990606df558ab65fb4cf542bef7a9bfcf9296c9d93fe4
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51mwoI:bc/y2lm6Y0AqJ51mwoI

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2432	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1656	2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe

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_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1656	2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe
2432	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2432	1656	2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe	29
PID 1656 wrote to memory of 2432	1656	2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe	29
PID 1656 wrote to memory of 2432	1656	2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe	29
PID 1656 wrote to memory of 2432	1656	2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_ef007e8545cf42d74ae526b66356e53c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2432

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\rewok.exe

Filesize
40KB

MD5
958ef4d4b54a5075aeb00fcff64400d4

SHA1
48d9359b9638033d31cc43a572ec375d9c0eab7a

SHA256
3d1583fdff8b2105325b45d28f4a6bf6c354415c16f1193e9091bb4619eff6bd

SHA512
6ef0f07a075ee26604c1cc2aaf176ba047497d9a9230d4318ceea38b6136ac444044c38656167343ec5bc9dd16ff721cbbad460c8e6350466190f8cc5b1c05b1

Download Submit
memory/1656-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1656-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1656-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2432-23-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download