bccfe2b045b4684b8f2c4e82cc51c0ba373c33ebe3818c97b4413e3b6f835ac0

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2024 02:34

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General

Target

bd71ad4cf9d6ac7f271740b6b9681ef1.exe
Size

24KB
MD5

bd71ad4cf9d6ac7f271740b6b9681ef1
SHA1

3f6654b1efb8d7d86a128273283c27670134667d
SHA256

bccfe2b045b4684b8f2c4e82cc51c0ba373c33ebe3818c97b4413e3b6f835ac0
SHA512

42c39d1f76b3ea97b15c216a1a9414890ce8ee8018d5c4438da499ce165a59c2b5a70f9b27f6b33063bd1fd19a5a78445305bf9334c0d1d6119314d57646ab88
SSDEEP

384:E3eVES+/xwGkRKJ7W+qMAqQWlM61qmTTMVF9/q5h0:bGS+ZfbJ2qQWO8qYoA+

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Start GeekBuddy = "C:\\Program Files\\Common Files\\Microsoft Shared\\Web Folders\\1033\\spoolsv.exe"	bd71ad4cf9d6ac7f271740b6b9681ef1.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared\Web Folders\1033\spoolsv.exe	bd71ad4cf9d6ac7f271740b6b9681ef1.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1304	tasklist.exe

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
540	ipconfig.exe
4072	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	tasklist.exe
Token: SeDebugPrivilege	4072	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
940	bd71ad4cf9d6ac7f271740b6b9681ef1.exe
940	bd71ad4cf9d6ac7f271740b6b9681ef1.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 228	940	bd71ad4cf9d6ac7f271740b6b9681ef1.exe	88
PID 940 wrote to memory of 228	940	bd71ad4cf9d6ac7f271740b6b9681ef1.exe	88
PID 940 wrote to memory of 228	940	bd71ad4cf9d6ac7f271740b6b9681ef1.exe	88
PID 228 wrote to memory of 1272	228	cmd.exe	90
PID 228 wrote to memory of 1272	228	cmd.exe	90
PID 228 wrote to memory of 1272	228	cmd.exe	90
PID 228 wrote to memory of 540	228	cmd.exe	91
PID 228 wrote to memory of 540	228	cmd.exe	91
PID 228 wrote to memory of 540	228	cmd.exe	91
PID 228 wrote to memory of 1304	228	cmd.exe	92
PID 228 wrote to memory of 1304	228	cmd.exe	92
PID 228 wrote to memory of 1304	228	cmd.exe	92
PID 228 wrote to memory of 1176	228	cmd.exe	95
PID 228 wrote to memory of 1176	228	cmd.exe	95
PID 228 wrote to memory of 1176	228	cmd.exe	95
PID 1176 wrote to memory of 3112	1176	net.exe	96
PID 1176 wrote to memory of 3112	1176	net.exe	96
PID 1176 wrote to memory of 3112	1176	net.exe	96
PID 228 wrote to memory of 4072	228	cmd.exe	97
PID 228 wrote to memory of 4072	228	cmd.exe	97
PID 228 wrote to memory of 4072	228	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\bd71ad4cf9d6ac7f271740b6b9681ef1.exe
"C:\Users\Admin\AppData\Local\Temp\bd71ad4cf9d6ac7f271740b6b9681ef1.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ver >c:\windows\temp\flash.log & cmd /c set >>c:\windows\temp\flash.log & ipconfig /all >>c:\windows\temp\flash.log & tasklist >>c:\windows\temp\flash.log & net start>>c:\windows\temp\flash.log & netstat -an >>c:\windows\temp\flash.log
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:228
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:1272
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:540
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1304
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1176
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:3112
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:4072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\temp\flash.log

Filesize
14KB

MD5
8459d1e239154896b2f212d9aeac7360

SHA1
2f64d6ce3aeb66cc31d38d61fbc54583db9cabb7

SHA256
bec1f6480b9aad3e1742c228f84d1694b8e7fb10359aaf225f5b29e4ff1facf8

SHA512
ac08801103afe4ee37275eed94f06fa5676e31b91d772c274906e5fa26ca57f42c6f6424d230149d900369be79e3b83601f6860a7ee86d411120ad0d8464acd4

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads