91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d

Analysis

max time kernel
154s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 00:47

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General

Target

91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe
Size

53KB
MD5

cb1e70a721a620eb2d55aecee013cf6f
SHA1

c3863cd0ce0ac07f8e78beec9600c0e570285b36
SHA256

91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d
SHA512

c95542a8f012792c61af73854318687cb2688b0b9cbb7cfeb5311ceb4366570abb43c275d8cc5b3640644a4fb7a81580d1f6ba6bd0f42d81e0549d70b28d8aac
SSDEEP

768:t5yQwyTIVNRoqBsvi4ZhKYTHIZehEDmAnJOc2AmnNJBGdgCa2p+66e257no:t5yVN1OKjRJqrPGdgRUDFyLo

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\19541 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msxdmjnr.bat"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\msxdmjnr.bat	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe
2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe
2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81
PID 4800 wrote to memory of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81
PID 4800 wrote to memory of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81
PID 4800 wrote to memory of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81
PID 4800 wrote to memory of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81
PID 4800 wrote to memory of 2288	4800	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	81
PID 2288 wrote to memory of 1532	2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	82
PID 2288 wrote to memory of 1532	2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	82
PID 2288 wrote to memory of 1532	2288	91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe	82

C:\Users\Admin\AppData\Local\Temp\91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe
"C:\Users\Admin\AppData\Local\Temp\91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\Temp\91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe
  "C:\Users\Admin\AppData\Local\Temp\91afb30a7c43956b86d63e41ef0f061f492c5f5c517919b5dd066b682387235d.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\syswow64\svchost.exe
    3⤵
    - Adds policy Run key to start application
    - Drops file in Program Files directory
    PID:1532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1532-134-0x0000000000000000-mapping.dmp

Download
memory/1532-136-0x0000000000AF0000-0x0000000000AFE000-memory.dmp

Filesize
56KB

Download
memory/1532-137-0x0000000000E10000-0x0000000000E15000-memory.dmp

Filesize
20KB

Download
memory/1532-138-0x0000000000B30000-0x0000000000B35000-memory.dmp

Filesize
20KB

Download
memory/1532-139-0x0000000000B30000-0x0000000000B35000-memory.dmp

Filesize
20KB

Download
memory/2288-132-0x0000000000000000-mapping.dmp

Download
memory/2288-133-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2288-135-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download