ecedb2c9e0ce159ad13ff258d6c4f0739288af124b368ac76523e206c7ce339b

Analysis

max time kernel
140s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/09/2024, 02:41

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General

Target

2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe
Size

35KB
MD5

69362027900682e65ee6ce494906fed7
SHA1

1c3e04b154e3b84e49a2e44231f972d261e4a248
SHA256

ecedb2c9e0ce159ad13ff258d6c4f0739288af124b368ac76523e206c7ce339b
SHA512

2ca6ea2fbc944ec8f3de3a8033b95064f4d1fe2d9e85460d60eaf432d889939d7e1c2515bc8f2e56ef921df479612e922cf2ba103c37d27183fba2dcc64fe656
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITV:qDdFJy3QMOtEvwDpjjWMl7TV

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2400	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2548-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000012280-16.dat	upx
behavioral1/memory/2548-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2400-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2400-27-0x0000000000500000-0x0000000000510000-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	2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2400	2548	2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe	30
PID 2548 wrote to memory of 2400	2548	2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe	30
PID 2548 wrote to memory of 2400	2548	2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe	30
PID 2548 wrote to memory of 2400	2548	2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_69362027900682e65ee6ce494906fed7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2400

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
35KB

MD5
38352f4e8618ceffd30f37bfade16469

SHA1
48df4e5dc9a5293a13b19fb25b8dd784ae2ddeca

SHA256
fd5aedcd1516942cac80800b2a05dab13a0add1ecaaa6bede28e21faa1f7dd20

SHA512
75cecafc38cc2be04efa2fecacfd7161475b5e9001a63eaaed874073108ab664d9a81400b58949d3e128e2ebaf2b8ddaaaaad2bf9298c985f85f89d094ff7281

Download Submit
memory/2400-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2400-26-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2400-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2400-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2548-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2548-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2548-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2548-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2548-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download