48c725e671bcbe62600389d08f4b8d74208d30f0ccde9e9e164b6b340f428db1

Resubmissions

10/08/2023, 16:05

230810-tjfyzage7s 7

10/08/2023, 15:55

10/08/2023, 15:45

10/08/2023, 15:44

10/08/2023, 15:41

28/04/2023, 11:09

02/04/2023, 13:37

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
10/08/2023, 15:45

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General

Target

debug.keystore
Size

1KB
MD5

1a3f439e417094c08f1e6ba11259c6b0
SHA1

d06fcd36029fb77340471010af2bedbb9e498f2f
SHA256

1850ad18872d07ad3525b2754e73e53e89d3681c1801e8d1cd72ad4755f78429
SHA512

28aefc2d566489f0c4e4a8dcac64e50c8efe32cc1e8837ccf987512891f78f423a0545d349f0fb716ba2c3e9d4d1a472f7804ad6853f9ffe45ab6a55b97886e2

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.keystore	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\keystore_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\keystore_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\keystore_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\keystore_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.keystore\ = "keystore_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\keystore_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\keystore_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2776	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2776	AcroRd32.exe
2776	AcroRd32.exe
2776	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 2780	2616	cmd.exe	29
PID 2616 wrote to memory of 2780	2616	cmd.exe	29
PID 2616 wrote to memory of 2780	2616	cmd.exe	29
PID 2780 wrote to memory of 2776	2780	rundll32.exe	30
PID 2780 wrote to memory of 2776	2780	rundll32.exe	30
PID 2780 wrote to memory of 2776	2780	rundll32.exe	30
PID 2780 wrote to memory of 2776	2780	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\debug.keystore
1⤵
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\debug.keystore
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2780
- - 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\debug.keystore"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Filesize
3KB

MD5
272ace44bee5bc4395d4c18743a74268

SHA1
c80bd19292edf806fd422ec0208855edc717e2ba

SHA256
940961391d8ed8c95f81dfa12a797d2bcf06f0ff39a0d805cdbb6f060936c327

SHA512
064743e5611c35a0419aa17429bb5c7de48e26614bb1982bd92dbb4b82312c78938e65ef405bbe2242e0fed5bdc37728cf68ce25fb6554b7f95a2cb791bc190e

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