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
122s
max time network
123s
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

e_esxi.out
Size

69KB
MD5

ce73b00417464190d7fb9b36af74968a
SHA1

885a734c7869b52aa125674cb430199b2645cda0
SHA256

dc90560d7198bf824b65ba2cfbe403d84d38113f41a1aa2f37f8d827fd9e0ceb
SHA512

7710eb3c601f0b6066606f7a098811efa8e411b12164e7bcb2ab289920156367ee53e6c243937d89ccf17af9c207856fbd2f125982e5242938cd189965a3556d
SSDEEP

1536:OgsIH3ny6nOyCNTs0BMScQLBrdE2TUwELzzhZaBHU2eQP:OgLXy6pCNLpcQLBrjTqloOw

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\out_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.out	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.out\ = "out_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\out_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\out_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\out_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\out_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\out_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2448	AcroRd32.exe
2448	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2644	2244	cmd.exe	29
PID 2244 wrote to memory of 2644	2244	cmd.exe	29
PID 2244 wrote to memory of 2644	2244	cmd.exe	29
PID 2644 wrote to memory of 2448	2644	rundll32.exe	30
PID 2644 wrote to memory of 2448	2644	rundll32.exe	30
PID 2644 wrote to memory of 2448	2644	rundll32.exe	30
PID 2644 wrote to memory of 2448	2644	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\e_esxi.out
1⤵
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\e_esxi.out
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2644
- - 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\e_esxi.out"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2448

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
35d26ad9d99aac257cec4291e14a3ccc

SHA1
571cf23362f44d37eb1c310a4559fb24fe47e7c0

SHA256
3f2414c6690f01e8b4f8ef096f999ffa155865d8b4dac4b239484ee497e3b0f2

SHA512
f53525dd40693945df8de0591dd9a0c2129959e91d8a75ff1436fc51aef959dbb05cc111190ad3c1c90e00cc6a33dca4cf7d4a39feac9fec4f778830fd70e485

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