637187013f30d12855bae6f3e4c33824a06485ec75f3d452c733895b28ca9d77

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 00:00

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General

Target

1b5b2959570cded90de2026af45870f9.exe
Size

24KB
MD5

1b5b2959570cded90de2026af45870f9
SHA1

c15a49e0ff515adb6ad7d80bd55192d29f682866
SHA256

637187013f30d12855bae6f3e4c33824a06485ec75f3d452c733895b28ca9d77
SHA512

0a1eb247e47f2d1c1f5bd9596875a980c85812057c69408a8e3ec4f2e29fa6133ba498117aff2d0deaa3fc9c9bcb0897368e320f8d01fa29797bed75e65108b5
SSDEEP

384:E3eVES+/xwGkRKJL1lM61qmTTMVF9/q5IjN0:bGS+ZfbJBO8qYoAIW

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"	1b5b2959570cded90de2026af45870f9.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	1b5b2959570cded90de2026af45870f9.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2672	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
2660	ipconfig.exe
2888	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	tasklist.exe
Token: SeDebugPrivilege	2888	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2528	1b5b2959570cded90de2026af45870f9.exe
2528	1b5b2959570cded90de2026af45870f9.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2012	2528	1b5b2959570cded90de2026af45870f9.exe	28
PID 2528 wrote to memory of 2012	2528	1b5b2959570cded90de2026af45870f9.exe	28
PID 2528 wrote to memory of 2012	2528	1b5b2959570cded90de2026af45870f9.exe	28
PID 2528 wrote to memory of 2012	2528	1b5b2959570cded90de2026af45870f9.exe	28
PID 2012 wrote to memory of 2760	2012	cmd.exe	30
PID 2012 wrote to memory of 2760	2012	cmd.exe	30
PID 2012 wrote to memory of 2760	2012	cmd.exe	30
PID 2012 wrote to memory of 2760	2012	cmd.exe	30
PID 2012 wrote to memory of 2660	2012	cmd.exe	31
PID 2012 wrote to memory of 2660	2012	cmd.exe	31
PID 2012 wrote to memory of 2660	2012	cmd.exe	31
PID 2012 wrote to memory of 2660	2012	cmd.exe	31
PID 2012 wrote to memory of 2672	2012	cmd.exe	32
PID 2012 wrote to memory of 2672	2012	cmd.exe	32
PID 2012 wrote to memory of 2672	2012	cmd.exe	32
PID 2012 wrote to memory of 2672	2012	cmd.exe	32
PID 2012 wrote to memory of 2684	2012	cmd.exe	34
PID 2012 wrote to memory of 2684	2012	cmd.exe	34
PID 2012 wrote to memory of 2684	2012	cmd.exe	34
PID 2012 wrote to memory of 2684	2012	cmd.exe	34
PID 2684 wrote to memory of 2828	2684	net.exe	35
PID 2684 wrote to memory of 2828	2684	net.exe	35
PID 2684 wrote to memory of 2828	2684	net.exe	35
PID 2684 wrote to memory of 2828	2684	net.exe	35
PID 2012 wrote to memory of 2888	2012	cmd.exe	36
PID 2012 wrote to memory of 2888	2012	cmd.exe	36
PID 2012 wrote to memory of 2888	2012	cmd.exe	36
PID 2012 wrote to memory of 2888	2012	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\1b5b2959570cded90de2026af45870f9.exe
"C:\Users\Admin\AppData\Local\Temp\1b5b2959570cded90de2026af45870f9.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528
- 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:2012
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2760
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2660
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2672
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2684
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2828
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2888

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
3f80bfc517be7369be3d6854125ee4ce

SHA1
55a51576505bc3dbdc2c8c796c83818e33d6ea8b

SHA256
8198f7ec2aac2b0722879689433795075d3a8168edca26a53342eeff64646f37

SHA512
a6784d7696197b3165515dc89488e20c94986f6f1a05d7768a54cd3efead6a4f3d11e90903c0410478e35a8e57b13e8d1c61fd4482d17127987418dcea45d64b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads