44cffe3cf0d9c21377e9aa11635f2fe3d867b6335c4470f0050c469195a782d1

Resubmissions

20/09/2023, 02:12

230920-cnbflsff36 9

Analysis

max time kernel
151s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
20/09/2023, 02:12

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General

Target

Origin/bin/theme.json
Size

538B
MD5

f47ea4c889e87a0f39493f04037ca795
SHA1

2d5ff24cbff1d8e3ba8c318ab320b5ab989fa017
SHA256

059c3d3eae1ffbc9d5dbd90ebdab85684d0679025324e84a319927b9dbeb1846
SHA512

63957f8f96c6db0f2a9006462f35bd54313422cc8d09a74455fa9425e275a4c91248d2dd679da0f2f112696792d116c5f48c7c6f59f6e165d5b4150950a5a1f6

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-1-5-21-3185155662-718608226-894467740-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\json_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
2800	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2800	AcroRd32.exe
2800	AcroRd32.exe
2800	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 1000	2324	cmd.exe	29
PID 2324 wrote to memory of 1000	2324	cmd.exe	29
PID 2324 wrote to memory of 1000	2324	cmd.exe	29
PID 1000 wrote to memory of 2800	1000	rundll32.exe	32
PID 1000 wrote to memory of 2800	1000	rundll32.exe	32
PID 1000 wrote to memory of 2800	1000	rundll32.exe	32
PID 1000 wrote to memory of 2800	1000	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Origin\bin\theme.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Origin\bin\theme.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1000
- - 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\Origin\bin\theme.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2800

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
73dce81c4987d712e3bd12f0796ca049

SHA1
af2f98a212a28a4de56e6818538d1a254d81389f

SHA256
bfed68897bd6365c9eede5b64f3a9208e2d9824dd422757b67fcb49bfc3b9fe0

SHA512
9485a8e8189cefe8f2c89293a58bb09d8addb5a50b4b2f191631cc9f75c5ef5c14885d2475084d0f21cc10434e0123878be9887b305f07afcd897dc8776e5e3c

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