ee63afdc298ba95aea13e2c60ccb43cd0c47c0a1379142be27e0953da91c0233

Analysis

max time kernel
153s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2024 09:51

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General

Target

3c8a3835ff2bf609a08cfeb38bf2c636.exe
Size

24KB
MD5

3c8a3835ff2bf609a08cfeb38bf2c636
SHA1

04718b1fc8274f98baf5eb3d6298c76a3dcd85d5
SHA256

ee63afdc298ba95aea13e2c60ccb43cd0c47c0a1379142be27e0953da91c0233
SHA512

54c8814f81b96747a07af64059f25e4b1185ec2d77cf6f2020bc1c45395f47761616f9ebf19f7e8a63e189ee2c073e4ff82dd5201f2981fd50989ba78e88e787
SSDEEP

384:E3eVES+/xwGkRKJ6O0TlM61qmTTMVF9/q5B0:bGS+ZfbJ6OgO8qYoAe

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"	3c8a3835ff2bf609a08cfeb38bf2c636.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	3c8a3835ff2bf609a08cfeb38bf2c636.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
5064	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
3756	ipconfig.exe
3392	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5064	tasklist.exe
Token: SeDebugPrivilege	3392	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1516	3c8a3835ff2bf609a08cfeb38bf2c636.exe
1516	3c8a3835ff2bf609a08cfeb38bf2c636.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 4200	1516	3c8a3835ff2bf609a08cfeb38bf2c636.exe	42
PID 1516 wrote to memory of 4200	1516	3c8a3835ff2bf609a08cfeb38bf2c636.exe	42
PID 1516 wrote to memory of 4200	1516	3c8a3835ff2bf609a08cfeb38bf2c636.exe	42
PID 4200 wrote to memory of 3364	4200	cmd.exe	44
PID 4200 wrote to memory of 3364	4200	cmd.exe	44
PID 4200 wrote to memory of 3364	4200	cmd.exe	44
PID 4200 wrote to memory of 3756	4200	cmd.exe	43
PID 4200 wrote to memory of 3756	4200	cmd.exe	43
PID 4200 wrote to memory of 3756	4200	cmd.exe	43
PID 4200 wrote to memory of 5064	4200	cmd.exe	45
PID 4200 wrote to memory of 5064	4200	cmd.exe	45
PID 4200 wrote to memory of 5064	4200	cmd.exe	45
PID 4200 wrote to memory of 1968	4200	cmd.exe	54
PID 4200 wrote to memory of 1968	4200	cmd.exe	54
PID 4200 wrote to memory of 1968	4200	cmd.exe	54
PID 1968 wrote to memory of 540	1968	net.exe	53
PID 1968 wrote to memory of 540	1968	net.exe	53
PID 1968 wrote to memory of 540	1968	net.exe	53
PID 4200 wrote to memory of 3392	4200	cmd.exe	57
PID 4200 wrote to memory of 3392	4200	cmd.exe	57
PID 4200 wrote to memory of 3392	4200	cmd.exe	57

C:\Users\Admin\AppData\Local\Temp\3c8a3835ff2bf609a08cfeb38bf2c636.exe
"C:\Users\Admin\AppData\Local\Temp\3c8a3835ff2bf609a08cfeb38bf2c636.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1516
- 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:4200
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:3756
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:3364
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:5064
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1968
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:3392

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 start
1⤵
PID:540

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
0f6a33fd73845469377603f68fc572ac

SHA1
14a872ea3817e8a304fb8351d42389ad2410ff8e

SHA256
9ccf24fde323fffeeaaa8e5973eb68cbf9150146b4673bfe8e7bf8f31843fdfd

SHA512
059921b36587bc47eeaea75a7a19889497f389dfacf0385d0ddc86aef5bddcb1d188b716646987d045a3dc30362dcd9dd24b9995bbd94f583777e49275a80c11

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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