207470c31aebb98487d019c4ca219f77be687bca6c704321066f6b6f31c58d25

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 15:56

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General

Target

Factura (8).tar.lz
Size

588KB
MD5

53baf5c9a0c8b13cb0bbdca4cd7cc025
SHA1

3bd3e1996c64620f83a64c826708c33beedcc14f
SHA256

207470c31aebb98487d019c4ca219f77be687bca6c704321066f6b6f31c58d25
SHA512

d712c8d8536555fe420b3a1851c73c8ece0c9dcbf9c583b8a003c76a05392828a8dc9b41bc35443bbdec9a7346df5d5d495c8a839a9c6d4941cdcf051c584068
SSDEEP

12288:Ur52lfmBF12lYaKdlfquhYKJReshs1UsG+16h3O9Mu74Cn8pTm/uxwUbfDp3/:NNGFLL3fqMR1hs1Usu3XsZ8pT7NbfF3/

Score

3^/10

discovery

Malware Config

Signatures

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 1 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	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\.lz\ = "lz_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\lz_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\lz_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\lz_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\.lz	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\lz_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\lz_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\lz_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2384	3052	cmd.exe	32
PID 3052 wrote to memory of 2384	3052	cmd.exe	32
PID 3052 wrote to memory of 2384	3052	cmd.exe	32
PID 2384 wrote to memory of 2684	2384	rundll32.exe	33
PID 2384 wrote to memory of 2684	2384	rundll32.exe	33
PID 2384 wrote to memory of 2684	2384	rundll32.exe	33
PID 2384 wrote to memory of 2684	2384	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Factura (8).tar.lz"
1⤵
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Factura (8).tar.lz
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Factura (8).tar.lz"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2684

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

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
aaafb938cccbca913df70fdde66c2299

SHA1
6f4fb6369214eab08accbabaf26545087944a763

SHA256
91f3dba38bbe55dc0079c9a8c8d357348d5e535c4482248ea4340217ef382dc0

SHA512
248f755b3ec94ff843a1cb4d61883cf008295772884d5a35df127a6804e13dc5e832ddf49fb9bd924658a457d1e09b001e9b394bd2566377ebfe9c1f1de3244c

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