82e560a078cd7bb4472d5af832a04c4bc8f1001bac97b1574efe9863d3f66550

Resubmissions

21-02-2024 19:59

240221-yqmsbafb69 10

27-02-2023 15:10

230227-sj843seb89 1

27-06-2021 20:55

210627-2nsmat5hex 10

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 19:59

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General

Target

d_esxi.out
Size

53KB
MD5

64b8e75e76283e034e134c128e9a405a
SHA1

cd19c2741261de97e91943148ba8c0863567b461
SHA256

930760c00de1b9a4bc2eefcd96173f1e9a906b11a9566c517fcb87a13acaa327
SHA512

8e9e0ceafc88504a408ed9a91514675b7e13e3f4ed5f3a2c0208f441c55d783e3708427fc49489bdd9f74804a00a093c6e28c5a012d483b502bee09995f6a84d
SSDEEP

1536:2sIH3ny6iOyCNx3SBqzMhpScQLBrdE2T2wETjSeQPH:2LXy6WCNiPYcQLBrjTkTPw

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.out\ = "out_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\out_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\out_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\out_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\out_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.out	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\out_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\out_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 1936	2224	cmd.exe	29
PID 2224 wrote to memory of 1936	2224	cmd.exe	29
PID 2224 wrote to memory of 1936	2224	cmd.exe	29
PID 1936 wrote to memory of 2576	1936	rundll32.exe	30
PID 1936 wrote to memory of 2576	1936	rundll32.exe	30
PID 1936 wrote to memory of 2576	1936	rundll32.exe	30
PID 1936 wrote to memory of 2576	1936	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\d_esxi.out
1⤵
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\d_esxi.out
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1936
- - 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\d_esxi.out"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2576

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
0fd7ac04ba101b24ae7eedfc2de6e04a

SHA1
1876066bd8608ba78d765889d899f767d299631c

SHA256
c572e07c5c5bc2fb0a61579640f4403f1085628e7efd09dc3a4128bfc9125ce7

SHA512
d49556bada6b92a05ee37bf8cf69e6cbefaedff779f78dff130624b18578c7076b80a2bcf519335fd7176420b1a13cb44296f2e303fd01c1f61937f0c9fcd874

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