4b3c32ba548e191895ab87affb46066b1a0cc5cc046371bab2f2e95f5f545998

Analysis

max time kernel
164s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 09:13

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General

Target

62c43fe74d3e88c5a43ffd10336735dc.exe
Size

24KB
MD5

62c43fe74d3e88c5a43ffd10336735dc
SHA1

643a691cf9860223bb006637cf724cef37adc73c
SHA256

4b3c32ba548e191895ab87affb46066b1a0cc5cc046371bab2f2e95f5f545998
SHA512

3cbf018518d297a041f60679da174a94a43033e39b19f9050eee8350e968c94d23a47d3abfda4380f37952387b96b2e06ad08a275cdb40b10d8e5b865e1a2302
SSDEEP

384:E3eVES+/xwGkRKJilM61qmTTMVF9/q510:bGS+ZfbJiO8qYoAa

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"	62c43fe74d3e88c5a43ffd10336735dc.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	62c43fe74d3e88c5a43ffd10336735dc.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
3736	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
4964	ipconfig.exe
3740	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3736	tasklist.exe
Token: SeDebugPrivilege	3740	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4540	62c43fe74d3e88c5a43ffd10336735dc.exe
4540	62c43fe74d3e88c5a43ffd10336735dc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 2264	4540	62c43fe74d3e88c5a43ffd10336735dc.exe	90
PID 4540 wrote to memory of 2264	4540	62c43fe74d3e88c5a43ffd10336735dc.exe	90
PID 4540 wrote to memory of 2264	4540	62c43fe74d3e88c5a43ffd10336735dc.exe	90
PID 2264 wrote to memory of 5076	2264	cmd.exe	92
PID 2264 wrote to memory of 5076	2264	cmd.exe	92
PID 2264 wrote to memory of 5076	2264	cmd.exe	92
PID 2264 wrote to memory of 4964	2264	cmd.exe	93
PID 2264 wrote to memory of 4964	2264	cmd.exe	93
PID 2264 wrote to memory of 4964	2264	cmd.exe	93
PID 2264 wrote to memory of 3736	2264	cmd.exe	94
PID 2264 wrote to memory of 3736	2264	cmd.exe	94
PID 2264 wrote to memory of 3736	2264	cmd.exe	94
PID 2264 wrote to memory of 3216	2264	cmd.exe	97
PID 2264 wrote to memory of 3216	2264	cmd.exe	97
PID 2264 wrote to memory of 3216	2264	cmd.exe	97
PID 3216 wrote to memory of 3400	3216	net.exe	98
PID 3216 wrote to memory of 3400	3216	net.exe	98
PID 3216 wrote to memory of 3400	3216	net.exe	98
PID 2264 wrote to memory of 3740	2264	cmd.exe	99
PID 2264 wrote to memory of 3740	2264	cmd.exe	99
PID 2264 wrote to memory of 3740	2264	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\62c43fe74d3e88c5a43ffd10336735dc.exe
"C:\Users\Admin\AppData\Local\Temp\62c43fe74d3e88c5a43ffd10336735dc.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4540
- 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:2264
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:5076
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:4964
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:3736
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3216
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:3400
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:3740

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
15KB

MD5
edf441d4ef525783b7d1fe2f2085a1eb

SHA1
f25cd1de70e5d2a8b82dd650d15e33b545ed0145

SHA256
af418c1f39a8cb3745f6cf7ca7f849c73aa857b9b776edbdfd0215f39312923c

SHA512
f91f95077525950b8fa7c2a1b51d8ab659b337e0acc0b1b25dc17cad340068b680046bdb992f57fa80b1def717e856bbd704ef1416a53886174814bbe9a023e9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads