0a0ac8e138fdddc9e18357375ff41da88e340ac4dfc225d2d60976607dac8d8c

General

Target

RFQ_EDM202011.exe
Size

524KB
MD5

b20f108e61c409deeb691fbab3120a42
SHA1

0d486d407d650aea66d87d61af363da24c2c5dfe
SHA256

0a0ac8e138fdddc9e18357375ff41da88e340ac4dfc225d2d60976607dac8d8c
SHA512

1279f57366a776db447720f34756268da67b4b764c90b1cbc22769bde14fd0f99c49d1eb53d74c3e289b3f7996502295cef657ca2c82c96f3f90bbdc34ffd1cd

Score

7^/10

Malware Config

Signatures

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\K5jr\help_nux.exe	mstsc.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-910373003-3952921535-3480519689-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 1800	1232	RFQ_EDM202011.exe	26
PID 1232 wrote to memory of 1800	1232	RFQ_EDM202011.exe	26
PID 1232 wrote to memory of 1800	1232	RFQ_EDM202011.exe	26
PID 1232 wrote to memory of 1800	1232	RFQ_EDM202011.exe	26
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1232 wrote to memory of 1796	1232	RFQ_EDM202011.exe	28
PID 1348 wrote to memory of 1804	1348	Explorer.EXE	29
PID 1348 wrote to memory of 1804	1348	Explorer.EXE	29
PID 1348 wrote to memory of 1804	1348	Explorer.EXE	29
PID 1348 wrote to memory of 1804	1348	Explorer.EXE	29
PID 1804 wrote to memory of 320	1804	mstsc.exe	30
PID 1804 wrote to memory of 320	1804	mstsc.exe	30
PID 1804 wrote to memory of 320	1804	mstsc.exe	30
PID 1804 wrote to memory of 320	1804	mstsc.exe	30
PID 1804 wrote to memory of 1860	1804	mstsc.exe	33
PID 1804 wrote to memory of 1860	1804	mstsc.exe	33
PID 1804 wrote to memory of 1860	1804	mstsc.exe	33
PID 1804 wrote to memory of 1860	1804	mstsc.exe	33
PID 1804 wrote to memory of 1860	1804	mstsc.exe	33

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1232 set thread context of 1796	1232	RFQ_EDM202011.exe	28
PID 1796 set thread context of 1348	1796	RFQ_EDM202011.exe	20
PID 1804 set thread context of 1348	1804	mstsc.exe	20

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1796	RFQ_EDM202011.exe
1796	RFQ_EDM202011.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1796	RFQ_EDM202011.exe
Token: SeDebugPrivilege	1804	mstsc.exe

Deletes itself 1 IoCs

pid	Process
320	cmd.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1796	RFQ_EDM202011.exe
1796	RFQ_EDM202011.exe
1796	RFQ_EDM202011.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1348	Explorer.EXE
1348	Explorer.EXE
1348	Explorer.EXE
1348	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1348	Explorer.EXE
1348	Explorer.EXE
1348	Explorer.EXE
1348	Explorer.EXE

Adds Run entry 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\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\6L3DUFWH = "C:\\Program Files (x86)\\K5jr\\help_nux.exe"	mstsc.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1800	schtasks.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1348
- C:\Users\Admin\AppData\Local\Temp\RFQ_EDM202011.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ_EDM202011.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  - Suspicious use of SetThreadContext
  PID:1232
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KxoKwFW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41D0.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1800
- - C:\Users\Admin\AppData\Local\Temp\RFQ_EDM202011.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious behavior: MapViewOfSection
    PID:1796
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: MapViewOfSection
  - Adds Run entry to start application
  PID:1804
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ_EDM202011.exe"
    3⤵
    - Deletes itself
    PID:320
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1796-2-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1804-7-0x0000000003230000-0x00000000032FB000-memory.dmp

Filesize
812KB

Download
memory/1804-8-0x0000000003570000-0x0000000003636000-memory.dmp

Filesize
792KB

Download
memory/1804-5-0x0000000000540000-0x0000000000644000-memory.dmp

Filesize
1.0MB

Download
memory/1860-10-0x000000013F920000-0x000000013F9B3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads