fb66144ddaa29d181c28194369ef342bf48404b17bf27f36fee7dfb937966cbe

Analysis

max time kernel
112s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 04:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dde3683deff8d14d1002043eb34edcd0N.exe
Size

96KB
MD5

dde3683deff8d14d1002043eb34edcd0
SHA1

3aed56c6a47828391faa500e260b3f55d57870cb
SHA256

fb66144ddaa29d181c28194369ef342bf48404b17bf27f36fee7dfb937966cbe
SHA512

855abe9f008b424d75cf6596b7572d86d5f937610555545c20d8690e5e720b05e33d4d6675581471a9d34383e7e81a058da8457ed7d01b9c4d307f05176f52b3
SSDEEP

3072:lbjgjXxdWBhMwRFy2Rk/kcIAebPph/ATvYKyUDI7Lurr:lfAXxd0qf2L/ATvryOI7ar

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	cmd.exe

Deletes itself 1 IoCs

pid	Process
4364	WScript.exe

Executes dropped EXE 6 IoCs

pid	Process
1656	rMX.exe
2428	rMX.exe.exe
1712	rMX.exe
2108	rMX.exe
1356	rMX.exe
3432	rMX.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2108-21-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/2108-20-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/2108-31-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/2108-22-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/2108-35-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/2108-34-0x0000000010000000-0x000000001002A000-memory.dmp	upx

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1712 set thread context of 2108	1712	rMX.exe	93
PID 1712 set thread context of 1356	1712	rMX.exe	94
PID 1712 set thread context of 3432	1712	rMX.exe	95

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\VWFLH\rMX.exe.exe	rMX.exe
File opened for modification	\??\c:\windows\nk.txt	cmd.exe
File created	\??\c:\windows\rMX.exe.bat	rMX.exe
File created	C:\WINDOWS\VWFLH\rMX.exe.exe	rMX.exe
File created	C:\WINDOWS\VWFLH\rMX.exe	rMX.exe.exe
File opened for modification	C:\WINDOWS\VWFLH\rMX.exe	rMX.exe.exe
File created	\??\c:\windows\rMX.exe.bat	rMX.exe
File created	C:\WINDOWS\VWFLH\rMX.exe	dde3683deff8d14d1002043eb34edcd0N.exe
File opened for modification	C:\WINDOWS\VWFLH\rMX.exe	dde3683deff8d14d1002043eb34edcd0N.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2736	3432	WerFault.exe	95
5000	1356	WerFault.exe	94

System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dde3683deff8d14d1002043eb34edcd0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rMX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rMX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rMX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rMX.exe.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	rMX.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 216 wrote to memory of 1656	216	dde3683deff8d14d1002043eb34edcd0N.exe	84
PID 216 wrote to memory of 1656	216	dde3683deff8d14d1002043eb34edcd0N.exe	84
PID 216 wrote to memory of 1656	216	dde3683deff8d14d1002043eb34edcd0N.exe	84
PID 1656 wrote to memory of 4128	1656	rMX.exe	85
PID 1656 wrote to memory of 4128	1656	rMX.exe	85
PID 1656 wrote to memory of 4128	1656	rMX.exe	85
PID 1656 wrote to memory of 1760	1656	rMX.exe	86
PID 1656 wrote to memory of 1760	1656	rMX.exe	86
PID 1656 wrote to memory of 1760	1656	rMX.exe	86
PID 216 wrote to memory of 4220	216	dde3683deff8d14d1002043eb34edcd0N.exe	87
PID 216 wrote to memory of 4220	216	dde3683deff8d14d1002043eb34edcd0N.exe	87
PID 216 wrote to memory of 4220	216	dde3683deff8d14d1002043eb34edcd0N.exe	87
PID 1760 wrote to memory of 2428	1760	cmd.exe	91
PID 1760 wrote to memory of 2428	1760	cmd.exe	91
PID 1760 wrote to memory of 2428	1760	cmd.exe	91
PID 2428 wrote to memory of 1712	2428	rMX.exe.exe	92
PID 2428 wrote to memory of 1712	2428	rMX.exe.exe	92
PID 2428 wrote to memory of 1712	2428	rMX.exe.exe	92
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 2108	1712	rMX.exe	93
PID 1712 wrote to memory of 1356	1712	rMX.exe	94
PID 1712 wrote to memory of 1356	1712	rMX.exe	94
PID 1712 wrote to memory of 1356	1712	rMX.exe	94
PID 1712 wrote to memory of 1356	1712	rMX.exe	94
PID 1712 wrote to memory of 3432	1712	rMX.exe	95
PID 1712 wrote to memory of 3432	1712	rMX.exe	95
PID 1712 wrote to memory of 3432	1712	rMX.exe	95
PID 1712 wrote to memory of 3432	1712	rMX.exe	95
PID 2428 wrote to memory of 3004	2428	rMX.exe.exe	96
PID 2428 wrote to memory of 3004	2428	rMX.exe.exe	96
PID 2428 wrote to memory of 3004	2428	rMX.exe.exe	96
PID 3004 wrote to memory of 3452	3004	cmd.exe	103
PID 3004 wrote to memory of 3452	3004	cmd.exe	103
PID 3004 wrote to memory of 3452	3004	cmd.exe	103
PID 4220 wrote to memory of 4364	4220	cmd.exe	104
PID 4220 wrote to memory of 4364	4220	cmd.exe	104
PID 4220 wrote to memory of 4364	4220	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\dde3683deff8d14d1002043eb34edcd0N.exe
"C:\Users\Admin\AppData\Local\Temp\dde3683deff8d14d1002043eb34edcd0N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:216
- C:\WINDOWS\VWFLH\rMX.exe
  C:\WINDOWS\VWFLH\rMX.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c echo 0>>c:\windows\nk.txt
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:4128
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\WINDOWS\VWFLH\rMX.exe.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1760
  - - C:\WINDOWS\VWFLH\rMX.exe.exe
      C:\WINDOWS\VWFLH\rMX.exe.exe
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2428
    - - C:\WINDOWS\VWFLH\rMX.exe
        
        C:\WINDOWS\VWFLH\rMX.exe
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1712
      - C:\WINDOWS\VWFLH\rMX.exe
        
        C:\WINDOWS\VWFLH\rMX.exe
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2108
      - C:\WINDOWS\VWFLH\rMX.exe
        
        C:\WINDOWS\VWFLH\rMX.exe
        6⤵
        Executes dropped EXE
        
        PID:1356
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 80
        7⤵
        Program crash
        
        PID:5000
      - C:\WINDOWS\VWFLH\rMX.exe
        
        C:\WINDOWS\VWFLH\rMX.exe
        6⤵
        Executes dropped EXE
        
        PID:3432
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 80
        7⤵
        Program crash
        
        PID:2736
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c c:\27.vbs
        5⤵
        Checks computer location settings
        System Location Discovery: System Language Discovery
        Modifies registry class
        Suspicious use of WriteProcessMemory
        
        PID:3004
      - C:\Windows\SysWOW64\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\27.vbs"
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:3452
- C:\Windows\SysWOW64\cmd.exe
  cmd /c c:\16.vbs
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\16.vbs"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3432 -ip 3432
1⤵
PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1356 -ip 1356
1⤵
PID:4996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\16.vbs

Filesize
205B

MD5
c1fa49a0316f1d4618aa003aa5e6bb3c

SHA1
574f40c19f580488dbab2188041498a5e51e116e

SHA256
8e99afb846e221deb29b178ef8616d6fbad3fa4952748640f3f979dc0bc743f5

SHA512
56f0e55775529c824d592e1c156e473b31068aac7070bdbe469f2c09992b57e350894f7109a60e6aa4e4a8ed0ab8ceadcf017f7c9347c2fe55f13d662a0a6373

Download Submit
C:\27.vbs

Filesize
162B

MD5
dcbe3d222ffe9599c4f1de2df843c1ca

SHA1
454f2848d0d25f4842c38dcefc4741716ca87239

SHA256
432e30725e3002f32f3fdeae75266c16973ce512af210fc1a84a68c6da14d627

SHA512
3caf7104a06568b11b76beb097781d744534b468c93beb46af1e0fa044758bcc2ba7c37765e2f767cef0bcff69c14087784e4e985fa040b4238f8ac995726c9f

Download Submit
C:\Windows\VWFLH\rMX.exe

Filesize
96KB

MD5
dde3683deff8d14d1002043eb34edcd0

SHA1
3aed56c6a47828391faa500e260b3f55d57870cb

SHA256
fb66144ddaa29d181c28194369ef342bf48404b17bf27f36fee7dfb937966cbe

SHA512
855abe9f008b424d75cf6596b7572d86d5f937610555545c20d8690e5e720b05e33d4d6675581471a9d34383e7e81a058da8457ed7d01b9c4d307f05176f52b3

Download Submit
C:\Windows\VWFLH\rMX.exe.exe

Filesize
96KB

MD5
5297c9c6544fa463a9474385c7fef904

SHA1
39fee55e1250d3a4024634b63502cfc49fef8bd9

SHA256
d8df7d46d4a7da2830b459643d32ef8ab26ee5bea95e1293032faf5e846c7705

SHA512
9fa19548f66b835c057820c076ead8e4e7866eaac70ef0c52a3f898557732ea1e1558718be6181ac4f238f2312142a3a835d13cbd55dd9cbeea5eca118d83889

Download Submit
memory/216-10-0x000000007EEE0000-0x000000007EEFF000-memory.dmp

Filesize
124KB

Download
memory/1656-9-0x000000007EEE0000-0x000000007EEFF000-memory.dmp

Filesize
124KB

Download
memory/1712-33-0x000000007EEE0000-0x000000007EEFF000-memory.dmp

Filesize
124KB

Download
memory/2108-31-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2108-22-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2108-35-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2108-34-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2108-20-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2108-21-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2428-32-0x000000007EEE0000-0x000000007EEFF000-memory.dmp

Filesize
124KB

Download