e5b98f79e84d434b44fe4dab6b0e7823772d32744249a8fb9fb2288d0b354b21

Analysis

max time kernel
184s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04-02-2024 12:56

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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
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.erom\ = "erom_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\erom_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\erom_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\erom_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.erom	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\erom_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\erom_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\erom_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1448	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1448	AcroRd32.exe
1448	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 1912	2316	cmd.exe	28
PID 2316 wrote to memory of 1912	2316	cmd.exe	28
PID 2316 wrote to memory of 1912	2316	cmd.exe	28
PID 1912 wrote to memory of 1448	1912	rundll32.exe	30
PID 1912 wrote to memory of 1448	1912	rundll32.exe	30
PID 1912 wrote to memory of 1448	1912	rundll32.exe	30
PID 1912 wrote to memory of 1448	1912	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:2316
- 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:1912
- - 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:1448

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
6d976b32f0b0c6da7b27e464f67af8ea

SHA1
9c22408dd3e0bdb1d530a0abbb060143f28978d8

SHA256
ca3722d2131d643cc4d447370cadd1786e9698d01138e04bc1100ad62689ce3d

SHA512
699f1f48f7c7ade02b2f0c9dce995126bb30fa4204d610ba9ecc27e39d9d638201cf37db70d203613947480e998a2ac5d77186bbd17c6d998a559e31e26b0b62

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