af2a128ec534177d78466f12e255c55b83dfcb6851444d0379e70ac5a49a459e

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 06:24

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General

Target

2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe
Size

73KB
MD5

22c95522b30423590beaeb1ff060e6b2
SHA1

aacdd09222a8c89cc508724e48e20c0cc05e7181
SHA256

af2a128ec534177d78466f12e255c55b83dfcb6851444d0379e70ac5a49a459e
SHA512

5f765d664b8b4608d7595acf68c3c6be137f1ab9482af9ea817cc021f824e51314629188a84f5dc862a709f03fe0e493f5209a3b4098dedcc14a637530750f0d
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9e:C4Q2c94OtEvwDpj4H8zr

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2968	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2316	2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2316-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120f6-11.dat	upx
behavioral1/memory/2316-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2968-25-0x0000000000500000-0x0000000000510000-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	2024-09-11_22c95522b30423590beaeb1ff060e6b2_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 2316 wrote to memory of 2968	2316	2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe	30
PID 2316 wrote to memory of 2968	2316	2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe	30
PID 2316 wrote to memory of 2968	2316	2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe	30
PID 2316 wrote to memory of 2968	2316	2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-11_22c95522b30423590beaeb1ff060e6b2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- 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:2968

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
73KB

MD5
14832d15c93d35e3755c4f714052cfe7

SHA1
2836f7ee6eee9475215aeadf2720b86385f56f9d

SHA256
9f9285b6d4ffe219d2d45183503fb30fb8cda1af4ed76e09d4ccbf39988229ba

SHA512
da75e0d326e11d69133ea68c6b26988e77420b9e1d2d454f0b38e20c70266f8e42d40d0a2a79cc7119ce0796c273950ab8b40a7ffe01126e763e31f170a068fe

Download Submit
memory/2316-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2316-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2316-9-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2316-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2316-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2968-17-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2968-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2968-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download