e5b98f79e84d434b44fe4dab6b0e7823772d32744249a8fb9fb2288d0b354b21

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20231130-en
resource tags

arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
submitted
07-12-2023 16:09

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General

Target

SCPH-70004_BIOS_V12_PAL_200.erom
Size

3.0MB
MD5

9feb1fdeadd6232a13b95e60b34ccef9
SHA1

ec0121bb8e2a209044309780d2efc2559c9a0ef1
SHA256

e5bcd5925c1f22de48d49c3895dd421d167faddc033aac628f5facfba90ceef3
SHA512

fa80cf49166165bc016f53da894dc62c2c9362cbeeb08b1b8546f1f49a9d207beb04cb8ec711be9191b11b563ca963f357e36792edd9a767aabf7418e9e07ea4
SSDEEP

49152:pdAqdAivUd7r3JgqK3m1R+DXNotHFTuMvFgwLcgSGouxwKSXaDZ3PFu:g5MkLJgroohotHFTTrcgSGUXstg

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-1-5-21-2058106572-1146578376-825901627-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\erom_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\erom_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\.erom\ = "erom_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\erom_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\.erom	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\erom_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\erom_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2058106572-1146578376-825901627-1000_CLASSES\erom_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2696	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2696	AcroRd32.exe
2696	AcroRd32.exe
2696	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2348	2408	cmd.exe	29
PID 2408 wrote to memory of 2348	2408	cmd.exe	29
PID 2408 wrote to memory of 2348	2408	cmd.exe	29
PID 2348 wrote to memory of 2696	2348	rundll32.exe	30
PID 2348 wrote to memory of 2696	2348	rundll32.exe	30
PID 2348 wrote to memory of 2696	2348	rundll32.exe	30
PID 2348 wrote to memory of 2696	2348	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SCPH-70004_BIOS_V12_PAL_200.erom
1⤵
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SCPH-70004_BIOS_V12_PAL_200.erom
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2348
- - 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\SCPH-70004_BIOS_V12_PAL_200.erom"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2696

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
e84709b2edbf1b3307d9c4d5f0f3c94f

SHA1
e14ece15faaa777df66b8b764cfd3b0da29b298f

SHA256
d6909cd28f3a72454795e9210a5000794504c45a055b1ab5acd0e8c0c7ed6e21

SHA512
dfaec31a512cb4bf34453f6f23de8dcc0ae6fb98f4995de7bc0a48d77eb9c76176ce4a8fd9a31ba961e073c04e99ea647f3d3d9d9c7efe42e736355ecb33f3ff

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