c82a0063581ad97011b5f65395a37db5b51d469946599544bdd91fe6bcef9e88

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 02:26

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General

Target

c4bd3c726364fd4b9d18041fe37b33cb.exe
Size

24KB
MD5

c4bd3c726364fd4b9d18041fe37b33cb
SHA1

7eacdcbd33a7a43f142905b0b0c965ffebcee625
SHA256

c82a0063581ad97011b5f65395a37db5b51d469946599544bdd91fe6bcef9e88
SHA512

d68847bd0ead1f053ec543c67c333704cfececf6fe44add96852c8d762c81199bf42499a29ec9a408446d7cc42d956a8cbb0ba8b5d0fcf99d1d40813c4246926
SSDEEP

384:E3eVES+/xwGkRKJilM61qmTTMVF9/q5e0:bGS+ZfbJiO8qYoAX

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"	c4bd3c726364fd4b9d18041fe37b33cb.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	c4bd3c726364fd4b9d18041fe37b33cb.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
5096	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
4792	ipconfig.exe
3688	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5096	tasklist.exe
Token: SeDebugPrivilege	3688	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2932	c4bd3c726364fd4b9d18041fe37b33cb.exe
2932	c4bd3c726364fd4b9d18041fe37b33cb.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 5000	2932	c4bd3c726364fd4b9d18041fe37b33cb.exe	85
PID 2932 wrote to memory of 5000	2932	c4bd3c726364fd4b9d18041fe37b33cb.exe	85
PID 2932 wrote to memory of 5000	2932	c4bd3c726364fd4b9d18041fe37b33cb.exe	85
PID 5000 wrote to memory of 2904	5000	cmd.exe	87
PID 5000 wrote to memory of 2904	5000	cmd.exe	87
PID 5000 wrote to memory of 2904	5000	cmd.exe	87
PID 5000 wrote to memory of 4792	5000	cmd.exe	88
PID 5000 wrote to memory of 4792	5000	cmd.exe	88
PID 5000 wrote to memory of 4792	5000	cmd.exe	88
PID 5000 wrote to memory of 5096	5000	cmd.exe	89
PID 5000 wrote to memory of 5096	5000	cmd.exe	89
PID 5000 wrote to memory of 5096	5000	cmd.exe	89
PID 5000 wrote to memory of 2056	5000	cmd.exe	91
PID 5000 wrote to memory of 2056	5000	cmd.exe	91
PID 5000 wrote to memory of 2056	5000	cmd.exe	91
PID 2056 wrote to memory of 4860	2056	net.exe	92
PID 2056 wrote to memory of 4860	2056	net.exe	92
PID 2056 wrote to memory of 4860	2056	net.exe	92
PID 5000 wrote to memory of 3688	5000	cmd.exe	93
PID 5000 wrote to memory of 3688	5000	cmd.exe	93
PID 5000 wrote to memory of 3688	5000	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\c4bd3c726364fd4b9d18041fe37b33cb.exe
"C:\Users\Admin\AppData\Local\Temp\c4bd3c726364fd4b9d18041fe37b33cb.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2932
- 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:5000
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2904
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:4792
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:5096
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2056
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:4860
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:3688

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
2995c2fe65121a782563e930c70c903b

SHA1
e8e1d18a4e9ebc994c2a766596e08eb847d5a41b

SHA256
f7257689192db2afb7d2e074a7a587f628b1d3b791351907c71f27771fe808fd

SHA512
1b462d39a871413dcf34c58aec1f9641c4703b75c0c412884ed40b5b2ff3ce609e202e00ccfd8c6e4c17083c357ab4db225b1847581f413dc919600f800dcc4c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads