63fbd9d3aff785984729056061188dfa7fdf7809ca1a577cc016713de2e3c601

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 15:17

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General

Target

77b35c76f3f0b6f58ce6ec2886694b15.exe
Size

24KB
MD5

77b35c76f3f0b6f58ce6ec2886694b15
SHA1

56ebc8a64f4b8c65451989fba688b1014f9c21ae
SHA256

63fbd9d3aff785984729056061188dfa7fdf7809ca1a577cc016713de2e3c601
SHA512

cb33cd4f9685c974cd30beb8b77a149f33b621279a58aeb821888cdcb6bc7ffd22de7245db9a34a8799793efcc37e12d87dc88db85f7575b52049e3d1a4250d0
SSDEEP

384:E3eVES+/xwGkRKJBqpQlM61qmTTMVF9/q5/v0:bGS+ZfbJBqGO8qYoAE

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"	77b35c76f3f0b6f58ce6ec2886694b15.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	77b35c76f3f0b6f58ce6ec2886694b15.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2864	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
1108	ipconfig.exe
2540	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2864	tasklist.exe
Token: SeDebugPrivilege	2540	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2292	77b35c76f3f0b6f58ce6ec2886694b15.exe
2292	77b35c76f3f0b6f58ce6ec2886694b15.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2680	2292	77b35c76f3f0b6f58ce6ec2886694b15.exe	28
PID 2292 wrote to memory of 2680	2292	77b35c76f3f0b6f58ce6ec2886694b15.exe	28
PID 2292 wrote to memory of 2680	2292	77b35c76f3f0b6f58ce6ec2886694b15.exe	28
PID 2292 wrote to memory of 2680	2292	77b35c76f3f0b6f58ce6ec2886694b15.exe	28
PID 2680 wrote to memory of 2728	2680	cmd.exe	30
PID 2680 wrote to memory of 2728	2680	cmd.exe	30
PID 2680 wrote to memory of 2728	2680	cmd.exe	30
PID 2680 wrote to memory of 2728	2680	cmd.exe	30
PID 2680 wrote to memory of 1108	2680	cmd.exe	31
PID 2680 wrote to memory of 1108	2680	cmd.exe	31
PID 2680 wrote to memory of 1108	2680	cmd.exe	31
PID 2680 wrote to memory of 1108	2680	cmd.exe	31
PID 2680 wrote to memory of 2864	2680	cmd.exe	32
PID 2680 wrote to memory of 2864	2680	cmd.exe	32
PID 2680 wrote to memory of 2864	2680	cmd.exe	32
PID 2680 wrote to memory of 2864	2680	cmd.exe	32
PID 2680 wrote to memory of 1128	2680	cmd.exe	34
PID 2680 wrote to memory of 1128	2680	cmd.exe	34
PID 2680 wrote to memory of 1128	2680	cmd.exe	34
PID 2680 wrote to memory of 1128	2680	cmd.exe	34
PID 1128 wrote to memory of 2832	1128	net.exe	35
PID 1128 wrote to memory of 2832	1128	net.exe	35
PID 1128 wrote to memory of 2832	1128	net.exe	35
PID 1128 wrote to memory of 2832	1128	net.exe	35
PID 2680 wrote to memory of 2540	2680	cmd.exe	36
PID 2680 wrote to memory of 2540	2680	cmd.exe	36
PID 2680 wrote to memory of 2540	2680	cmd.exe	36
PID 2680 wrote to memory of 2540	2680	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\77b35c76f3f0b6f58ce6ec2886694b15.exe
"C:\Users\Admin\AppData\Local\Temp\77b35c76f3f0b6f58ce6ec2886694b15.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2292
- 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:2680
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2728
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:1108
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2864
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1128
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2832
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2540

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
06f2b01a652edea110732130d8e401aa

SHA1
7951c88d5695758dad82756bdd7d4bb90ad600be

SHA256
da17be77ce655438f9b88a104eba4f11452d11f66f1c20fec707e9dc09104465

SHA512
a333f2001223ebb0cd64b3058f53026d93a2df19fa4e68005b078afb80573cbf79388ae4b3531f3b9d465caa20ae7164474b90808260aea98934cd0c4154daf8

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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