d816fbf9bf26b466bc69a0cb1624c82bae397fe6f8ce6f388a330f70fe2d8150

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 16:53

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General

Target

c921a19a803a3eb62ff67ecd9f5d238b.exe
Size

24KB
MD5

c921a19a803a3eb62ff67ecd9f5d238b
SHA1

8e48e538abf42a23ccb23714cf59593c41bbaaae
SHA256

d816fbf9bf26b466bc69a0cb1624c82bae397fe6f8ce6f388a330f70fe2d8150
SHA512

ce4b39da393c141e8fe890fd9c40f36c232684ee7000f106178e784ec04c382998e7fed76278a43f35d3fcb4fa679487b90ff4986cac188305c1bf7b40d6344f
SSDEEP

384:E3eVES+/xwGkRKJilM61qmTTMVF9/q5N0:bGS+ZfbJiO8qYoAi

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"	c921a19a803a3eb62ff67ecd9f5d238b.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	c921a19a803a3eb62ff67ecd9f5d238b.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2520	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
2804	ipconfig.exe
2624	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	tasklist.exe
Token: SeDebugPrivilege	2624	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2280	c921a19a803a3eb62ff67ecd9f5d238b.exe
2280	c921a19a803a3eb62ff67ecd9f5d238b.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 1564	2280	c921a19a803a3eb62ff67ecd9f5d238b.exe	28
PID 2280 wrote to memory of 1564	2280	c921a19a803a3eb62ff67ecd9f5d238b.exe	28
PID 2280 wrote to memory of 1564	2280	c921a19a803a3eb62ff67ecd9f5d238b.exe	28
PID 2280 wrote to memory of 1564	2280	c921a19a803a3eb62ff67ecd9f5d238b.exe	28
PID 1564 wrote to memory of 2052	1564	cmd.exe	30
PID 1564 wrote to memory of 2052	1564	cmd.exe	30
PID 1564 wrote to memory of 2052	1564	cmd.exe	30
PID 1564 wrote to memory of 2052	1564	cmd.exe	30
PID 1564 wrote to memory of 2804	1564	cmd.exe	31
PID 1564 wrote to memory of 2804	1564	cmd.exe	31
PID 1564 wrote to memory of 2804	1564	cmd.exe	31
PID 1564 wrote to memory of 2804	1564	cmd.exe	31
PID 1564 wrote to memory of 2520	1564	cmd.exe	32
PID 1564 wrote to memory of 2520	1564	cmd.exe	32
PID 1564 wrote to memory of 2520	1564	cmd.exe	32
PID 1564 wrote to memory of 2520	1564	cmd.exe	32
PID 1564 wrote to memory of 2556	1564	cmd.exe	34
PID 1564 wrote to memory of 2556	1564	cmd.exe	34
PID 1564 wrote to memory of 2556	1564	cmd.exe	34
PID 1564 wrote to memory of 2556	1564	cmd.exe	34
PID 2556 wrote to memory of 2536	2556	net.exe	35
PID 2556 wrote to memory of 2536	2556	net.exe	35
PID 2556 wrote to memory of 2536	2556	net.exe	35
PID 2556 wrote to memory of 2536	2556	net.exe	35
PID 1564 wrote to memory of 2624	1564	cmd.exe	36
PID 1564 wrote to memory of 2624	1564	cmd.exe	36
PID 1564 wrote to memory of 2624	1564	cmd.exe	36
PID 1564 wrote to memory of 2624	1564	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\c921a19a803a3eb62ff67ecd9f5d238b.exe
"C:\Users\Admin\AppData\Local\Temp\c921a19a803a3eb62ff67ecd9f5d238b.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280
- 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:1564
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2052
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2804
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2520
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2556
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2536
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2624

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
6b70bb411b9171745463936c92c9d85f

SHA1
5f90ceda80abdb4d34e8a262c11869774f2d064f

SHA256
d3d5feafe905f11a8b709e84dbd287a057d41159ac0721c05ea679a1f5b8b431

SHA512
2d074f556a692b41f36d78d515ddaf2b385329aee908decb60948d62686ccd827218425e28d44016890e57771209462e7026178626c4223a1d003bcbfb267e77

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads