6933c8d12dde4b4af696999d595d4cfbaa98d3f61c675f2063ded7f2ac8c93c8

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
07-05-2024 07:19

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General

Target

BJtfV102.bin
Size

269KB
MD5

bb66a3ee62da79bec5b95cdabc473621
SHA1

13790dcb660558856b78dbf7381c5cd54faa8091
SHA256

6933c8d12dde4b4af696999d595d4cfbaa98d3f61c675f2063ded7f2ac8c93c8
SHA512

d853426c6e147700465b1a9e4cb923ae01219fed66e576fb018ceefb72c5aa53a96cd3778824f02a2682eb3ccfbc3aeb358009193863f820d3d07b2b54d84e2a
SSDEEP

6144:tWNS3vOyxsOxFUiCYWXhqiPdRFiC/1M+UPt6xys6YWWC:4L2FClXhjPdRFzOLwwsgWC

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.bin	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
852	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
852	AcroRd32.exe
852	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 2096	1684	cmd.exe	29
PID 1684 wrote to memory of 2096	1684	cmd.exe	29
PID 1684 wrote to memory of 2096	1684	cmd.exe	29
PID 2096 wrote to memory of 852	2096	rundll32.exe	30
PID 2096 wrote to memory of 852	2096	rundll32.exe	30
PID 2096 wrote to memory of 852	2096	rundll32.exe	30
PID 2096 wrote to memory of 852	2096	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\BJtfV102.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BJtfV102.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2096
- - 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\BJtfV102.bin"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:852

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
a80cc2e9848c38d80d4e7603707e4d13

SHA1
fdf238ec3d856229b4bff07ca49699829c14c233

SHA256
966f833757f8b9eb1fc20c62fd821f4122eaf5d870a27bcd36e41707ce3ac011

SHA512
418edda75b0cf0cfcacc7a86effe93855697394012335b5a9b3b96cff291594dc0d5f7e16fb9e95ee181577d94610e720dd1a1bfef10366024c5d686bf606593

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