e2c1756ebc183e94ef5dc768406e2cd6c784f0ee07618e7dfc38499aa2e45eb9

Analysis

max time kernel
1s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2023, 10:06

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General

Target
file.exe
Size 1.6MB
Sample231206-l43dpsgf2z
SHA256 e2c1756ebc183e94ef5dc768406e2cd6c784f0ee07618e7dfc38499aa2e45eb9
MD5 a9495bbac732811e7b84c29079c1f829
SHA1 637ce33a65e4f8cc25e05649fb2789959649d9c6
SHA512 556a0862880d7238fd1532f3c680b8d0f81daf9f3214c082b66b5a025e3ec69158738ff8fddcbb99cf02805417e0d4f33812eea356a55ebf4983f8714292cf1a
SSDEEP 49152:qWg8wUmZOzqiavjDUJO/WH89ctcO0ljbbQnIQGotBKqD8TJCHEGU42sn6:ZiUmZOzqiavjDUM/WH89y8bboGO
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk	file.exe

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\USER\S-1-5-21-433534792-1200107535-3148087551-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe"	file.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ipinfo.io
13	ipinfo.io

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	file.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	file.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	file.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	file.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2216	4472	WerFault.exe	87

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4980	schtasks.exe
2904	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 4980	4472	file.exe	88
PID 4472 wrote to memory of 4980	4472	file.exe	88
PID 4472 wrote to memory of 4980	4472	file.exe	88
PID 4472 wrote to memory of 2904	4472	file.exe	93
PID 4472 wrote to memory of 2904	4472	file.exe	93
PID 4472 wrote to memory of 2904	4472	file.exe	93

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4472
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:4980
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 1680
  2⤵
  - Program crash
  PID:2216

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:4404

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4472 -ip 4472
1⤵
PID:3644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

OfficeTrackerNMP131.exe

Path C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
Size 1.6MB
SHA256 e2c1756ebc183e94ef5dc768406e2cd6c784f0ee07618e7dfc38499aa2e45eb9
MD5 a9495bbac732811e7b84c29079c1f829
SHA1 637ce33a65e4f8cc25e05649fb2789959649d9c6
SHA512 556a0862880d7238fd1532f3c680b8d0f81daf9f3214c082b66b5a025e3ec69158738ff8fddcbb99cf02805417e0d4f33812eea356a55ebf4983f8714292cf1a
SSDEEP 49152:qWg8wUmZOzqiavjDUJO/WH89ctcO0ljbbQnIQGotBKqD8TJCHEGU42sn6:ZiUmZOzqiavjDUM/WH89y8bboGO
MD5 SHA1 SHA512 SSDEEP

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information.txt

Path C:\Users\Admin\AppData\Local\Temp\grandUIA_Lm4Ep1IBGpTC\information.txt
Size 3KB
SHA256 3cdee85bb9fac0d6767bb25bc2560d07b92150f79994a7eb3a500c31055a106e
MD5 e9524d31ec72c415ffb225ea58f1e0cf
SHA1 29f580e2ca9237a9e19ecb54f3d97fa9432f88f0
SHA512 567872f787eb26fa443465134b224d24c0c9203021304ce686cddfee39bb7fc4a185bc91f4c1878fb967d25b308829750edd10925fdc49be2ff655687f4ac3e2
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads