33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b

Analysis

max time kernel
36s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-10-2022 02:18

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General

Target

33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe
Size

62KB
MD5

5743c9e5366d3e7bc6597ea18c9d7600
SHA1

53e22c8ed8a9943b4ee7d509ab9e9c73d2050522
SHA256

33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b
SHA512

b628268faf11d5cc4244997b9a710559b0b0eed3c0b55b7511128961848e48e2fa8d70368c4cf943cca2f8cebb63a9070aa756c486976dc1557dd571d1bb6a7c
SSDEEP

768:tImlmJpTLuIWJBrg6PhH7Od9l96RGGj/9Dhfaj6eCXLdQn4nUfDi9duXFXcb:tsJpT6+27OLL6Bj/xhC+jXqn1uvuXFsb

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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\10229 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msyztpf.com"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1736	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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe

Drops file in Program Files directory 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe
1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 1736	1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe	27
PID 1988 wrote to memory of 1736	1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe	27
PID 1988 wrote to memory of 1736	1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe	27
PID 1988 wrote to memory of 1736	1988	33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe	27

C:\Users\Admin\AppData\Local\Temp\33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe
"C:\Users\Admin\AppData\Local\Temp\33c1a848d6daacc7ee0ca75459d7e3a93b37dc87863739906dd6eade9b40f31b.exe"
1⤵
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Windows\syswow64\svchost.exe
  C:\Windows\syswow64\svchost.exe
  2⤵
  - Adds policy Run key to start application
  - Deletes itself
  - Drops file in Program Files directory
  PID:1736

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/1736-56-0x0000000000000000-mapping.dmp

Download
memory/1736-57-0x00000000008A0000-0x00000000008A8000-memory.dmp

Filesize
32KB

Download
memory/1736-58-0x0000000000080000-0x0000000000085000-memory.dmp

Filesize
20KB

Download
memory/1736-59-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1736-60-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1988-54-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1988-55-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download