a042cd826b86021078c17941337d63c37a92d2ae14eba4d635181f9ee1e003fb

Analysis

max time kernel
142s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-02-2024 06:39

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General

Target

8633aab973727f4cfd277c34aee257b2.exe
Size

24KB
MD5

8633aab973727f4cfd277c34aee257b2
SHA1

fcd56c1c9909eeda78b4c53af48f39beeac480e4
SHA256

a042cd826b86021078c17941337d63c37a92d2ae14eba4d635181f9ee1e003fb
SHA512

f181aaef3f08a8102f58ec1220aeec27c43e0b117e20d6788f50f4c8a446710fcc79ecc4d0ec4d47ea5192e9f1623c326a633a019b871b1b53a55ac156490fe7
SSDEEP

384:E3eVES+/xwGkRKJBLlM61qmTTMVF9/q5w0:bGS+ZfbJBLO8qYoAJ

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"	8633aab973727f4cfd277c34aee257b2.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	8633aab973727f4cfd277c34aee257b2.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2252	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
1956	ipconfig.exe
992	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	tasklist.exe
Token: SeDebugPrivilege	992	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
740	8633aab973727f4cfd277c34aee257b2.exe
740	8633aab973727f4cfd277c34aee257b2.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 2992	740	8633aab973727f4cfd277c34aee257b2.exe	84
PID 740 wrote to memory of 2992	740	8633aab973727f4cfd277c34aee257b2.exe	84
PID 740 wrote to memory of 2992	740	8633aab973727f4cfd277c34aee257b2.exe	84
PID 2992 wrote to memory of 3996	2992	cmd.exe	86
PID 2992 wrote to memory of 3996	2992	cmd.exe	86
PID 2992 wrote to memory of 3996	2992	cmd.exe	86
PID 2992 wrote to memory of 1956	2992	cmd.exe	87
PID 2992 wrote to memory of 1956	2992	cmd.exe	87
PID 2992 wrote to memory of 1956	2992	cmd.exe	87
PID 2992 wrote to memory of 2252	2992	cmd.exe	88
PID 2992 wrote to memory of 2252	2992	cmd.exe	88
PID 2992 wrote to memory of 2252	2992	cmd.exe	88
PID 2992 wrote to memory of 4684	2992	cmd.exe	90
PID 2992 wrote to memory of 4684	2992	cmd.exe	90
PID 2992 wrote to memory of 4684	2992	cmd.exe	90
PID 4684 wrote to memory of 2548	4684	net.exe	91
PID 4684 wrote to memory of 2548	4684	net.exe	91
PID 4684 wrote to memory of 2548	4684	net.exe	91
PID 2992 wrote to memory of 992	2992	cmd.exe	92
PID 2992 wrote to memory of 992	2992	cmd.exe	92
PID 2992 wrote to memory of 992	2992	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\8633aab973727f4cfd277c34aee257b2.exe
"C:\Users\Admin\AppData\Local\Temp\8633aab973727f4cfd277c34aee257b2.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:740
- 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:2992
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:3996
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:1956
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2252
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4684
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2548
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:992

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
13KB

MD5
26a0e66a5c17400f9d6b1c0d683ab4e9

SHA1
2844177c972e22153c44a8f0e95d6a3205e2d3db

SHA256
f8e05460b8537e6d7fca2759a71f7aa7360811d80276642d184a5f56a007a5ee

SHA512
e816935141ff5aace8d067345bb23139dd96c57d99d722154b13839a9245688e44bf3f1bf186b58a3ceb6ed674965aaf61a25fd8f484e96c6fbfac5345a1fbc4

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads