ce246655a1634245a92b0ba781ac4829471a12a0ae1065645d761d729deb5d6a

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
12/01/2023, 05:00

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General

Target

[IBRA-2022]Mina2/cueva1v2.dff
Size

133KB
MD5

97d207bb262e38f01cf7bcb2879d477e
SHA1

4143ba46261c825699ce68da251c8ef56e5a4321
SHA256

258d26c60de2d7bdab1058a5a9c34dc67ba574bebb4d3a751465f0a23d64c429
SHA512

ba10e3cdc7e2650523af20e90c717c482efaf84639534624dd23bd87d674e0564c4d14218eae5608ba6110a7f1233a9c0cfadb375529adc583bae04ff35b0710
SSDEEP

3072:DNAz0CTTTTTTTTTTTTTTTTTTTTTTTTTTswzwcIaZGjsLfOyKiIiS6yVSLa0F:RuTTTTTTTTTTTTTTTTTTTTTTTTTTs8PZ

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\dff_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\dff_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\dff_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\dff_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\dff_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\dff_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\.dff	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\.dff\ = "dff_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
776	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
776	AcroRd32.exe
776	AcroRd32.exe
776	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1252	2004	cmd.exe	29
PID 2004 wrote to memory of 1252	2004	cmd.exe	29
PID 2004 wrote to memory of 1252	2004	cmd.exe	29
PID 1252 wrote to memory of 776	1252	rundll32.exe	30
PID 1252 wrote to memory of 776	1252	rundll32.exe	30
PID 1252 wrote to memory of 776	1252	rundll32.exe	30
PID 1252 wrote to memory of 776	1252	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\[IBRA-2022]Mina2\cueva1v2.dff
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\[IBRA-2022]Mina2\cueva1v2.dff
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1252
- - 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\[IBRA-2022]Mina2\cueva1v2.dff"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/776-82-0x0000000075151000-0x0000000075153000-memory.dmp

Filesize
8KB

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memory/2004-54-0x000007FEFB531000-0x000007FEFB533000-memory.dmp

Filesize
8KB

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