1045172819c45006c624edc900b862b26c15b02a161f314509b7812a58f36f2f

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
14/10/2024, 05:07

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General

Target

2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe
Size

91KB
MD5

e65d839bca722c2bf0f0a9349417f94f
SHA1

15f514c630f0e1b515ca2a67e92ff52edeca2168
SHA256

1045172819c45006c624edc900b862b26c15b02a161f314509b7812a58f36f2f
SHA512

c99395c074715ed60e1947cd8f4a3fe0e3e762f5ff76d9c85ba84052ed60f6cbaabdb5da5367628e80af619c9f8b25d5ef507ec0136dba3e61bec29f3c60756f
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDj9i4RR6:zCsanOtEvwDpjb

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3052	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2500	2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2500-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012262-11.dat	upx
behavioral1/memory/3052-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2500-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3052-26-0x0000000000500000-0x0000000000510000-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	2024-10-14_e65d839bca722c2bf0f0a9349417f94f_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 2500 wrote to memory of 3052	2500	2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe	30
PID 2500 wrote to memory of 3052	2500	2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe	30
PID 2500 wrote to memory of 3052	2500	2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe	30
PID 2500 wrote to memory of 3052	2500	2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_e65d839bca722c2bf0f0a9349417f94f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- 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:3052

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
92KB

MD5
cdd4b8c542245c417f1f307679a2ba25

SHA1
043f29d9f0c4ac16a6089ff5cf74798b025af09f

SHA256
7e0c7c6b3ad19fe0bbfc7a649424c4eb8fed306c6b1542db31840bb3a7c9cac8

SHA512
16133dd46f33490d034e15a22793c53ed8858b73f6b80381813b0e1c372a4f593595d7a6df604eb1b9492d50734211843db46dfd5fbe05f62a2325d605d2fda7

Download Submit
memory/2500-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2500-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2500-9-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2500-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2500-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3052-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3052-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3052-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/3052-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download