c82a0063581ad97011b5f65395a37db5b51d469946599544bdd91fe6bcef9e88

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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
2636	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
3020	ipconfig.exe
2732	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2636	tasklist.exe
Token: SeDebugPrivilege	2732	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2968	c4bd3c726364fd4b9d18041fe37b33cb.exe
2968	c4bd3c726364fd4b9d18041fe37b33cb.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 1976	2968	c4bd3c726364fd4b9d18041fe37b33cb.exe	28
PID 2968 wrote to memory of 1976	2968	c4bd3c726364fd4b9d18041fe37b33cb.exe	28
PID 2968 wrote to memory of 1976	2968	c4bd3c726364fd4b9d18041fe37b33cb.exe	28
PID 2968 wrote to memory of 1976	2968	c4bd3c726364fd4b9d18041fe37b33cb.exe	28
PID 1976 wrote to memory of 1560	1976	cmd.exe	30
PID 1976 wrote to memory of 1560	1976	cmd.exe	30
PID 1976 wrote to memory of 1560	1976	cmd.exe	30
PID 1976 wrote to memory of 1560	1976	cmd.exe	30
PID 1976 wrote to memory of 3020	1976	cmd.exe	31
PID 1976 wrote to memory of 3020	1976	cmd.exe	31
PID 1976 wrote to memory of 3020	1976	cmd.exe	31
PID 1976 wrote to memory of 3020	1976	cmd.exe	31
PID 1976 wrote to memory of 2636	1976	cmd.exe	32
PID 1976 wrote to memory of 2636	1976	cmd.exe	32
PID 1976 wrote to memory of 2636	1976	cmd.exe	32
PID 1976 wrote to memory of 2636	1976	cmd.exe	32
PID 1976 wrote to memory of 2536	1976	cmd.exe	34
PID 1976 wrote to memory of 2536	1976	cmd.exe	34
PID 1976 wrote to memory of 2536	1976	cmd.exe	34
PID 1976 wrote to memory of 2536	1976	cmd.exe	34
PID 2536 wrote to memory of 2580	2536	net.exe	35
PID 2536 wrote to memory of 2580	2536	net.exe	35
PID 2536 wrote to memory of 2580	2536	net.exe	35
PID 2536 wrote to memory of 2580	2536	net.exe	35
PID 1976 wrote to memory of 2732	1976	cmd.exe	36
PID 1976 wrote to memory of 2732	1976	cmd.exe	36
PID 1976 wrote to memory of 2732	1976	cmd.exe	36
PID 1976 wrote to memory of 2732	1976	cmd.exe	36

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:2968
- 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:1976
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:1560
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:3020
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2636
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2536
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2580
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2732

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
8KB

MD5
ba22ab27e9ea7c275efe136ba85003b3

SHA1
34fe59fcf17c6c5aeed6fe743d1619a6cbaa3376

SHA256
e2dea2043a5c76086795d7cc39292091cad2be7bdb14be9797714ccbc208ab48

SHA512
ecefcd820e2735bff1c77bd52f6f42e71a1faa40a398b820dc13ab759550608d5ec5d5d18940a65591aff087c4866bd99c8bd038b8cbd43bb7560f4ac9ed2897

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads