649c75d99b6d8e237d8a8d0142796fcbfa7381674628201f474b58039144ec2a

Resubmissions

15-11-2024 18:05

241115-wpjcdsxrdy 10

11-11-2024 21:40

241111-1h6xbsxcql 10

03-12-2022 17:54

221203-wg4ncscc33 10

Analysis

max time kernel
1596s
max time network
1608s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
15-11-2024 18:05

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General

Target

bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe
Size

1.7MB
MD5

e9118e77017247f6e5d4046ce9dad8b6
SHA1

8204f61940dc697bf1d96e5a1625629ead242275
SHA256

bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296
SHA512

027a2e262975982f0de9a6be165b77edb037beca0ecfa38a3c4f63aae07416aa688767fd50cf0bf1a5c492d9ee6d04c72aefb3a90ae31a7de1ce088964f5bdaa
SSDEEP

49152:H6M6Zsl+0dOuD2rmHiSCYK64SDq2zPrBLNTyCrxw:H6pZskpuD+gGYa+zBL05

Score

8^/10

discovery

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

15 624 rundll32.exe

flow	pid	process
15	624	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4074627901-37362009-3519777259-1000\Control Panel\International\Geo\Nation	bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe

Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

2436 rundll32.exe
624 rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2436	rundll32.exe
624	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.execontrol.exerundll32.exerundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 1 IoCs

Processes:

bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4074627901-37362009-3519777259-1000_Classes\Local Settings	bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.execontrol.exerundll32.exeRunDll32.exe

description	pid	process	target process
PID 952 wrote to memory of 1100	952	bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe	control.exe
PID 952 wrote to memory of 1100	952	bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe	control.exe
PID 952 wrote to memory of 1100	952	bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe	control.exe
PID 1100 wrote to memory of 2436	1100	control.exe	rundll32.exe
PID 1100 wrote to memory of 2436	1100	control.exe	rundll32.exe
PID 1100 wrote to memory of 2436	1100	control.exe	rundll32.exe
PID 2436 wrote to memory of 2544	2436	rundll32.exe	RunDll32.exe
PID 2436 wrote to memory of 2544	2436	rundll32.exe	RunDll32.exe
PID 2544 wrote to memory of 624	2544	RunDll32.exe	rundll32.exe
PID 2544 wrote to memory of 624	2544	RunDll32.exe	rundll32.exe
PID 2544 wrote to memory of 624	2544	RunDll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe
"C:\Users\Admin\AppData\Local\Temp\bccfdc8e1ac04a684732b0011d6b512118d3b6fb5a249803cd2e87427a965296.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:952
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Temp\SDOWFS.cpl",
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1100
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\SDOWFS.cpl",
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2436
  - - C:\Windows\system32\RunDll32.exe
      C:\Windows\system32\RunDll32.exe Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\SDOWFS.cpl",
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2544
    - - C:\Windows\SysWOW64\rundll32.exe
        
        "C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 "C:\Users\Admin\AppData\Local\Temp\SDOWFS.cpl",
        5⤵
        Blocklisted process makes network request
        Loads dropped DLL
        System Location Discovery: System Language Discovery
        
        PID:624

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\SDowFS.cpl

Filesize
1.8MB

MD5
6df29a5803a4576a90b6d9cc44b622bc

SHA1
7bed517810e102847d8679aaa3a1caf7ae1a6064

SHA256
9e147a3bb22a10fe3f032dda125b871c7892065a68acd85de372e4622ec2a753

SHA512
38267fca5b28db2e85663bfe075307cfd66e8fd6c30303ad9840a1c04ab287232d700fbca506d837c2c927f46b738999a3de40747dd064ddf3a9dd025cf882a2

Download Submit
memory/624-68-0x0000000005630000-0x00000000056CF000-memory.dmp

Filesize
636KB

Download
memory/624-69-0x0000000005630000-0x00000000056CF000-memory.dmp

Filesize
636KB

Download
memory/624-39-0x0000000000400000-0x00000000005D2000-memory.dmp

Filesize
1.8MB

Download
memory/624-72-0x0000000000AF0000-0x0000000000AF4000-memory.dmp

Filesize
16KB

Download
memory/624-71-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/624-70-0x0000000003F60000-0x0000000004075000-memory.dmp

Filesize
1.1MB

Download
memory/624-42-0x0000000003DA0000-0x0000000003E63000-memory.dmp

Filesize
780KB

Download
memory/624-65-0x0000000005580000-0x0000000005625000-memory.dmp

Filesize
660KB

Download
memory/624-64-0x0000000003F20000-0x000000000557B000-memory.dmp

Filesize
22.4MB

Download
memory/624-63-0x0000000003E70000-0x0000000003F1E000-memory.dmp

Filesize
696KB

Download
memory/624-46-0x0000000003E70000-0x0000000003F1E000-memory.dmp

Filesize
696KB

Download
memory/624-44-0x0000000003E70000-0x0000000003F1E000-memory.dmp

Filesize
696KB

Download
memory/2436-21-0x00000000042C0000-0x000000000436E000-memory.dmp

Filesize
696KB

Download
memory/2436-15-0x00000000040A0000-0x00000000041E4000-memory.dmp

Filesize
1.3MB

Download
memory/2436-16-0x0000000003DC0000-0x0000000003F47000-memory.dmp

Filesize
1.5MB

Download
memory/2436-34-0x0000000005A80000-0x0000000005B1F000-memory.dmp

Filesize
636KB

Download
memory/2436-33-0x00000000059D0000-0x0000000005A75000-memory.dmp

Filesize
660KB

Download
memory/2436-32-0x0000000004370000-0x00000000059CB000-memory.dmp

Filesize
22.4MB

Download
memory/2436-31-0x00000000042C0000-0x000000000436E000-memory.dmp

Filesize
696KB

Download
memory/2436-88-0x00000000040A0000-0x00000000041E4000-memory.dmp

Filesize
1.3MB

Download
memory/2436-14-0x0000000003DC0000-0x0000000003F47000-memory.dmp

Filesize
1.5MB

Download
memory/2436-23-0x00000000042C0000-0x000000000436E000-memory.dmp

Filesize
696KB

Download
memory/2436-20-0x00000000042C0000-0x000000000436E000-memory.dmp

Filesize
696KB

Download
memory/2436-19-0x00000000041F0000-0x00000000042B3000-memory.dmp

Filesize
780KB

Download
memory/2436-17-0x0000000000400000-0x00000000005D2000-memory.dmp

Filesize
1.8MB

Download
memory/2436-81-0x0000000005A80000-0x0000000005B1F000-memory.dmp

Filesize
636KB

Download
memory/2436-35-0x0000000005A80000-0x0000000005B1F000-memory.dmp

Filesize
636KB

Download