ce246655a1634245a92b0ba781ac4829471a12a0ae1065645d761d729deb5d6a

Analysis

max time kernel
150s
max time network
31s
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/cueva1.txd
Size

300KB
MD5

d2610d5fddd999b025d83c8fbf60d2f9
SHA1

c28267413394c95aa979e51ea67a8a3a2be65e16
SHA256

bd63bd2d65d6a29819025cd5256c9cba02631f805e900e1146db589169c40ff5
SHA512

542f3b0ae47e78098d844e40f94babef896a7f32100a20494c5da41b0e8b0d611b5a520b8d022c5512571c9bda05a642922ec1ceec6b4bcac3debcfc93be6502
SSDEEP

6144:qpf24BgOyLApcPeImo6BpdIECyYnPvDcs/rjgEsk:wf24B3yqcPekEpGEqXDcyx3

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\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\txd_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\.txd	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\txd_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\txd_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	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\.txd\ = "txd_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\txd_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\txd_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\txd_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1896	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1896	AcroRd32.exe
1896	AcroRd32.exe
1896	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1352	1508	cmd.exe	29
PID 1508 wrote to memory of 1352	1508	cmd.exe	29
PID 1508 wrote to memory of 1352	1508	cmd.exe	29
PID 1352 wrote to memory of 1896	1352	rundll32.exe	30
PID 1352 wrote to memory of 1896	1352	rundll32.exe	30
PID 1352 wrote to memory of 1896	1352	rundll32.exe	30
PID 1352 wrote to memory of 1896	1352	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\[IBRA-2022]Mina2\cueva1.txd
1⤵
- Suspicious use of WriteProcessMemory
PID:1508
- 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\cueva1.txd
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1352
- - 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\cueva1.txd"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1896

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/1508-54-0x000007FEFB8A1000-0x000007FEFB8A3000-memory.dmp

Filesize
8KB

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memory/1896-82-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

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