60119cfc3cd6b63295c163fad7ab43949d62d5ed6bb024cd3054a2c64e8339c7

Analysis

max time kernel
20s
max time network
118s
platform
windows10_x64
resource
win10v20201028
submitted
18-01-2021 16:26

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General

Target

USD35900.exe
Size

836KB
MD5

1982963b64d323f39033d40641437595
SHA1

8dde953e501af236d8be98dbf6d683fda458ba38
SHA256

60119cfc3cd6b63295c163fad7ab43949d62d5ed6bb024cd3054a2c64e8339c7
SHA512

75481182ea78ca9e6ee9022db2e2cfb869419a779e37e149d8c70da3e3f8132dcffcb53a368311bd7dfbe13dab1ee2eae7846aefd361848a375f91d4f61e31b1

Score

10^/10

persistence

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 1020 created 1324 1020 WerFault.exe ieinstal.exe

description	pid	process	target process
PID 1020 created 1324	1020	WerFault.exe	ieinstal.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

USD35900.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yqjbm = "C:\\Users\\Admin\\mbjqY.url"	USD35900.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1020 1324 WerFault.exe ieinstal.exe

pid	pid_target	process	target process
1020	1324	WerFault.exe	ieinstal.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	19	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

USD35900.exe

pid process

3920 USD35900.exe
3920 USD35900.exe

pid	process
3920	USD35900.exe
3920	USD35900.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

USD35900.exe

description	pid	process	target process
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe
PID 3920 wrote to memory of 1324	3920	USD35900.exe	ieinstal.exe

C:\Users\Admin\AppData\Local\Temp\USD35900.exe
"C:\Users\Admin\AppData\Local\Temp\USD35900.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3920

C:\Program Files (x86)\internet explorer\ieinstal.exe
"C:\Program Files (x86)\internet explorer\ieinstal.exe"
2⤵
PID:1324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 76
3⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
PID:1020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1020-6-0x0000000004970000-0x0000000004971000-memory.dmp

Filesize
4KB

Download
memory/1324-3-0x0000000003060000-0x0000000003061000-memory.dmp

Filesize
4KB

Download
memory/1324-4-0x0000000000000000-mapping.dmp

Download
memory/1324-5-0x0000000003100000-0x0000000003101000-memory.dmp

Filesize
4KB

Download
memory/3920-2-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download