fc788d41f02145ba4f9086674464826cc596a0843b73b285f2ae3426439b2d82

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01/05/2024, 20:34

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General

Target

Main/ServerDataFeatured.class
Size

705B
MD5

bba78c06fef7d37c12ad67a74cfbd770
SHA1

e96ab3614890533b7c2d94b9bca3106c0a201074
SHA256

184be805a815b1bfb933d3b15266e223db0d6e6339e3e29f4e262d6d5c9a178a
SHA512

fa686c929c98afecacb34c6d4548b5dc6c46e9ea402444e58b28bbc70a1c2aa208019e5fdb90228eae3a5f254acb01ff25b22fb1ddf918499f2b4582fc8783bc

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.class	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2596	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2596	AcroRd32.exe
2596	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 2868	1216	cmd.exe	29
PID 1216 wrote to memory of 2868	1216	cmd.exe	29
PID 1216 wrote to memory of 2868	1216	cmd.exe	29
PID 2868 wrote to memory of 2596	2868	rundll32.exe	30
PID 2868 wrote to memory of 2596	2868	rundll32.exe	30
PID 2868 wrote to memory of 2596	2868	rundll32.exe	30
PID 2868 wrote to memory of 2596	2868	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Main\ServerDataFeatured.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Main\ServerDataFeatured.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2868
- - 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\Main\ServerDataFeatured.class"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2596

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
8f5b324f5c7106518505b5dfdee85e22

SHA1
fbe61150ef29dcfaf42a992f22270f6a749fd77e

SHA256
495bfd7524ad9c13dd7d51d03f24b555133e595af2ab6ebfc3c587387ecee9d4

SHA512
fb3f056aa713ea27038b0736220aac54e5b04c50fe0207564d4622efae1a3ce36f4a1e11e462e544e04773db1882b564ba0d5fa064e7200fd9456340eb5acba5

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