915e5de7d37767af31c33713345c76a33849160e47ab4739246c4d6637bc3ff9

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 03:30

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General

Target

2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe
Size

39KB
MD5

6792f5012c298ae10ab810c3402728fa
SHA1

952e1822c3a4eaa598d547ad6729546c0bd8a29d
SHA256

915e5de7d37767af31c33713345c76a33849160e47ab4739246c4d6637bc3ff9
SHA512

ec10c53174e5d2921f429e304b60e17f9e2145a11efeed8a67c5a885e704bc545c2ccef27a5619d0cd5d3a39bbb78f8711ec8c7b953870f3200778eaefc02eb1
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYan/M7:qDdFJy3QMOtEvwDpjjWMl7Tdn/W

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1036	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2380	2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0033000000011c23-11.dat	upx
behavioral1/memory/2380-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1036-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1036-26-0x0000000000500000-0x0000000000510000-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	2024-09-19_6792f5012c298ae10ab810c3402728fa_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 2380 wrote to memory of 1036	2380	2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe	30
PID 2380 wrote to memory of 1036	2380	2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe	30
PID 2380 wrote to memory of 1036	2380	2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe	30
PID 2380 wrote to memory of 1036	2380	2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_6792f5012c298ae10ab810c3402728fa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- 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:1036

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\asih.exe

Filesize
40KB

MD5
2e69741b55f6cf1a93a66ba4d9e9d84a

SHA1
c7e7bf26d751130222e94633a2c0e25c211f0afc

SHA256
bdd4f179e449f5eb9bc9c441357366405157e7c396516641748379fc82cfd25c

SHA512
be5fcdf95aa833b865a8799ced1eea0f62c52c97b0800138e210dc5c84cea1f8ace64374ba41f5e5b590cb250314f51a9809984d7c8f1f941a7f1fe25c88f7c6

Download Submit
memory/1036-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1036-19-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1036-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2380-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2380-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2380-3-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2380-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download