2cc1cab204525ebbc8fc9f26090aae680e914b3904e18c51237918726c9b63eb

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/03/2024, 19:51 UTC

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General

Target

b9820bc23e280e0e7540533cba880fde.exe
Size

24KB
MD5

b9820bc23e280e0e7540533cba880fde
SHA1

236800da956ff2038ec04e9c4a8f5d0012b94810
SHA256

2cc1cab204525ebbc8fc9f26090aae680e914b3904e18c51237918726c9b63eb
SHA512

8a90d1d2e33502d73df283c761659093b50921a71fe65f4e4b835cd36c3f4af411976c0236e3e39a46976e2a057460cab2591b84a766ee05e08d8b452fb21578
SSDEEP

384:E3eVES+/xwGkRKJuxxlM61qmTTMVF9/q5O0:bGS+ZfbJuxxO8qYoAn

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"	b9820bc23e280e0e7540533cba880fde.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	b9820bc23e280e0e7540533cba880fde.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2632	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
2752	ipconfig.exe
2584	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	tasklist.exe
Token: SeDebugPrivilege	2584	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
828	b9820bc23e280e0e7540533cba880fde.exe
828	b9820bc23e280e0e7540533cba880fde.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 2368	828	b9820bc23e280e0e7540533cba880fde.exe	28
PID 828 wrote to memory of 2368	828	b9820bc23e280e0e7540533cba880fde.exe	28
PID 828 wrote to memory of 2368	828	b9820bc23e280e0e7540533cba880fde.exe	28
PID 828 wrote to memory of 2368	828	b9820bc23e280e0e7540533cba880fde.exe	28
PID 2368 wrote to memory of 1636	2368	cmd.exe	30
PID 2368 wrote to memory of 1636	2368	cmd.exe	30
PID 2368 wrote to memory of 1636	2368	cmd.exe	30
PID 2368 wrote to memory of 1636	2368	cmd.exe	30
PID 2368 wrote to memory of 2752	2368	cmd.exe	31
PID 2368 wrote to memory of 2752	2368	cmd.exe	31
PID 2368 wrote to memory of 2752	2368	cmd.exe	31
PID 2368 wrote to memory of 2752	2368	cmd.exe	31
PID 2368 wrote to memory of 2632	2368	cmd.exe	32
PID 2368 wrote to memory of 2632	2368	cmd.exe	32
PID 2368 wrote to memory of 2632	2368	cmd.exe	32
PID 2368 wrote to memory of 2632	2368	cmd.exe	32
PID 2368 wrote to memory of 2544	2368	cmd.exe	34
PID 2368 wrote to memory of 2544	2368	cmd.exe	34
PID 2368 wrote to memory of 2544	2368	cmd.exe	34
PID 2368 wrote to memory of 2544	2368	cmd.exe	34
PID 2544 wrote to memory of 2084	2544	net.exe	35
PID 2544 wrote to memory of 2084	2544	net.exe	35
PID 2544 wrote to memory of 2084	2544	net.exe	35
PID 2544 wrote to memory of 2084	2544	net.exe	35
PID 2368 wrote to memory of 2584	2368	cmd.exe	36
PID 2368 wrote to memory of 2584	2368	cmd.exe	36
PID 2368 wrote to memory of 2584	2368	cmd.exe	36
PID 2368 wrote to memory of 2584	2368	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\b9820bc23e280e0e7540533cba880fde.exe
"C:\Users\Admin\AppData\Local\Temp\b9820bc23e280e0e7540533cba880fde.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:828
- 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:2368
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:1636
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2752
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2632
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2544
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2084
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2584

Network

DNS

www.kvic.jp

b9820bc23e280e0e7540533cba880fde.exe

Remote address:

8.8.8.8:53

Request

www.kvic.jp

IN A

Response

No results found

8.8.8.8:53

www.kvic.jp

dns

b9820bc23e280e0e7540533cba880fde.exe

57 B
107 B
1
1

DNS Request

www.kvic.jp

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
e04ca483d9872650b9c038ebdc993c24

SHA1
9d7edda68b825616833e7a20499d5de2ad0c92d2

SHA256
22bc72c92c29362554b68ac476a6152fccb1a68fc6c28adf354cbf16d18d30e7

SHA512
bbf1148bacfbacc97242a2be410256b7ba02143cb18b7f58ba7088d20a2100205c81d9a20658bd89f091d645c5f3de047f54d0cb147af3f6c9075d759831ca3c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

MITRE ATT&CK Enterprise v15

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Downloads

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