2882cbed0fb11c95d01b487a85338f4ec25fd44fc3f0936d68af4832d1be9a54

Resubmissions

05-02-2025 11:06

250205-m7gf3svpcl 10

25-11-2024 01:10

241125-bjt7gswjcj 10

Analysis

max time kernel
248s
max time network
210s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2025 11:06

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General

Target

ransom/Build/LB3.exe
Size

145KB
MD5

b2cb742a43762106fc03fa1e26fd4f68
SHA1

aef4e9199b06b835b6e677c0910d3ed6fdf96ef3
SHA256

f4dcf20fcdd95d241eadcd88ce30998189d0682132456e9254321a8d6d281611
SHA512

d0521e8a496e53a309acf7f9d388e684bfa068cc77d23ae6a7da75e6dea962b2a9e3dd5a27dc5e45c054aa025e3ff1a3c237a996aab2fbcfaa68483481ca4975
SSDEEP

3072:5qJogYkcSNm9V7D58PleQQuloQwssCnT:5q2kc4m9tDcQvuiQfD

Score

9^/10

defense_evasion discovery ransomware spyware stealer

Malware Config

Signatures

Renames multiple (611) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	CBDC.tmp

Deletes itself 1 IoCs

pid	Process
4340	CBDC.tmp

Executes dropped EXE 1 IoCs

pid	Process
4340	CBDC.tmp

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\$Recycle.Bin\S-1-5-21-2089655958-977706906-1981639424-1000\desktop.ini	LB3.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2089655958-977706906-1981639424-1000\desktop.ini	LB3.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\system32\spool\PRINTERS\PPrk801qjv_mg0n8zx7lrr7eks.TMP	printfilterpipelinesvc.exe
File created	C:\Windows\system32\spool\PRINTERS\00002.SPL	splwow64.exe
File created	C:\Windows\system32\spool\PRINTERS\PPefr8w1acvm3rhmk4l06c0jd3c.TMP	printfilterpipelinesvc.exe
File created	C:\Windows\system32\spool\PRINTERS\PPcb84v_669d2_69jxpqini57lc.TMP	printfilterpipelinesvc.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\BNzPckH0e.bmp"	LB3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\BNzPckH0e.bmp"	LB3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4340	CBDC.tmp

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	LB3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CBDC.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	ONENOTE.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	ONENOTE.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ONENOTE.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	ONENOTE.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	ONENOTE.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	ONENOTE.EXE

Modifies Control Panel 2 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\Desktop\WallpaperStyle = "10"	LB3.exe
Key created	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\Desktop	LB3.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BNzPckH0e	LB3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BNzPckH0e\DefaultIcon\ = "C:\\ProgramData\\BNzPckH0e.ico"	LB3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.BNzPckH0e	LB3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.BNzPckH0e\ = "BNzPckH0e"	LB3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BNzPckH0e\DefaultIcon	LB3.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe
2116	LB3.exe

Suspicious behavior: RenamesItself 26 IoCs

pid	Process
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp
4340	CBDC.tmp

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeAssignPrimaryTokenPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeDebugPrivilege	2116	LB3.exe
Token: 36	2116	LB3.exe
Token: SeImpersonatePrivilege	2116	LB3.exe
Token: SeIncBasePriorityPrivilege	2116	LB3.exe
Token: SeIncreaseQuotaPrivilege	2116	LB3.exe
Token: 33	2116	LB3.exe
Token: SeManageVolumePrivilege	2116	LB3.exe
Token: SeProfSingleProcessPrivilege	2116	LB3.exe
Token: SeRestorePrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSystemProfilePrivilege	2116	LB3.exe
Token: SeTakeOwnershipPrivilege	2116	LB3.exe
Token: SeShutdownPrivilege	2116	LB3.exe
Token: SeDebugPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeBackupPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe
Token: SeSecurityPrivilege	2116	LB3.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE
468	ONENOTE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2140	2116	LB3.exe	89
PID 2116 wrote to memory of 2140	2116	LB3.exe	89
PID 1484 wrote to memory of 468	1484	printfilterpipelinesvc.exe	92
PID 1484 wrote to memory of 468	1484	printfilterpipelinesvc.exe	92
PID 2116 wrote to memory of 4340	2116	LB3.exe	93
PID 2116 wrote to memory of 4340	2116	LB3.exe	93
PID 2116 wrote to memory of 4340	2116	LB3.exe	93
PID 2116 wrote to memory of 4340	2116	LB3.exe	93
PID 4340 wrote to memory of 3216	4340	CBDC.tmp	94
PID 4340 wrote to memory of 3216	4340	CBDC.tmp	94
PID 4340 wrote to memory of 3216	4340	CBDC.tmp	94

C:\Users\Admin\AppData\Local\Temp\ransom\Build\LB3.exe
C:\Users\Admin\AppData\Local\Temp\ransom\Build\LB3.exe dsrm -subtree -noprompt -c user"http://+:443"
1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  - Drops file in System32 directory
  PID:2140
- C:\ProgramData\CBDC.tmp
  "C:\ProgramData\CBDC.tmp"
  2⤵
  - Checks computer location settings
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\CBDC.tmp >> NUL
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3216

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4632

C:\Windows\system32\printfilterpipelinesvc.exe
C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
  /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{958850FC-BA91-43C7-BCA8-851AF784523D}.xps" 133832273079540000
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of SetWindowsHookEx
  PID:468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-2089655958-977706906-1981639424-1000\SSSSSSSSSSS

Filesize
129B

MD5
3f1f6a24d2af0acefc9505853401c0d2

SHA1
eea30b88568a37b736741f906b703e8dc92bedf0

SHA256
7974f1c24163d5413fe8fcc044e3e276610808706bc3b179b6fd428c1c244133

SHA512
c77ddb3ada8c0f98f1fa763fea77f9139ed1b7b4effd722038bb8bf371ce1af92551122283071201fe61af4d263fd170148c116b98fe9798c8d857509076fbb1

Download Submit
C:\BNzPckH0e.README.txt

Filesize
93B

MD5
eaebdbc14b3c2ecdcec757fc361f5589

SHA1
02ec5589c9f3c671c464671faaf1b8343d849490

SHA256
0f037f3ac40aa8e999e3394d3741594b3410581f89eb467863e0ff30fa2417da

SHA512
14f5876fd27dbff0784e851e1c2fe4c68f70dc3b0cc2e95f10ab28bc872f90e82bb590f441379b73579c54680132a6961d216b9c18cd9648f9a45d4a72db660f

Download Submit
C:\ProgramData\CBDC.tmp

Filesize
14KB

MD5
294e9f64cb1642dd89229fff0592856b

SHA1
97b148c27f3da29ba7b18d6aee8a0db9102f47c9

SHA256
917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

SHA512
b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

Download Submit
C:\Users\Admin\AppData\Local\Temp\ransom\Build\DDDDDDD

Filesize
145KB

MD5
4c98940dbf9b8468fa244012d42bba06

SHA1
0d25a4356e0979b354ead6af2a56c1c4066fa3ef

SHA256
c07a64ea17def8d50cc11dd9e3bfff66c658a05ba32635e8193072fb405d28c8

SHA512
d7ec806d252c36d0fe2017473147a60337ff7330815e83e546f29ad2c00bad69b371cbd0b4dee248d6434fbe55d7910dd8b267a1b595b5ac2bfb89d8146a45ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\{EE67A056-6BA8-4306-A217-1FC0B18F4C39}

Filesize
4KB

MD5
ee3f4ab99cae5c5fc81549f84edf8ee4

SHA1
3dadc48bf59a00c258f2f4c75a8d92147fa38743

SHA256
25244120134f42fb44366a5ecc7cfaaf2f33b4c285a6ace650e4340547692460

SHA512
0304e9ee6a403e2f23139248b4ff0ad96ee84dfa43ca76ff6fcd63a1560b88022d85d342fb1c648c5d0d50f6c675e36c60e1ff8fe9e33e5dbbd95609eec3cedf

Download Submit
C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

Filesize
4KB

MD5
fb69b832b702c5b8ab50528dc1a588fc

SHA1
2c8e729596ebb217b7d4ba916f7ee84c40967199

SHA256
2cd3b0e5d708eb103760134e02a2a1904014d4c1a9fc78ebea45fcf8dc7aa41e

SHA512
5cc6a98b41e72ad3d8a5c65655281285ea6950008d7f0041ebe5f753b64cd29f55395b20fac129ed2d1afc631d2a670aeeb61aac4d6e67f3d13e9d5ce9821651

Download Submit
F:\$RECYCLE.BIN\S-1-5-21-2089655958-977706906-1981639424-1000\DDDDDDDDDDD

Filesize
129B

MD5
c436aea61c8607fd5983943ddaa419d5

SHA1
150ef5c3a28c4e08ac0821a143aaf1460b2bde4d

SHA256
bcc472e112ceb536b3f0888f63de303a3a172ee67d762d8c90432e93fd590964

SHA512
bef8b9c233351ede0f1106f604ee6c3107817e5c5205cc02cc57ef3c0164a134f17d96e3b8c6a6e7faf433b329cc17ddf615fa11e413fcaa1516ab77b8027e39

Download Submit
memory/468-2958-0x00007FFEE03D0000-0x00007FFEE03E0000-memory.dmp

Filesize
64KB

Download
memory/468-2928-0x00007FFEE2810000-0x00007FFEE2820000-memory.dmp

Filesize
64KB

Download
memory/468-2929-0x00007FFEE2810000-0x00007FFEE2820000-memory.dmp

Filesize
64KB

Download
memory/468-2927-0x00007FFEE2810000-0x00007FFEE2820000-memory.dmp

Filesize
64KB

Download
memory/468-2926-0x00007FFEE2810000-0x00007FFEE2820000-memory.dmp

Filesize
64KB

Download
memory/468-2925-0x00007FFEE2810000-0x00007FFEE2820000-memory.dmp

Filesize
64KB

Download
memory/468-2959-0x00007FFEE03D0000-0x00007FFEE03E0000-memory.dmp

Filesize
64KB

Download
memory/2116-2907-0x0000000002FD0000-0x0000000002FE0000-memory.dmp

Filesize
64KB

Download
memory/2116-0-0x0000000002FD0000-0x0000000002FE0000-memory.dmp

Filesize
64KB

Download
memory/2116-2-0x0000000002FD0000-0x0000000002FE0000-memory.dmp

Filesize
64KB

Download
memory/2116-2908-0x0000000002FD0000-0x0000000002FE0000-memory.dmp

Filesize
64KB

Download
memory/2116-2909-0x0000000002FD0000-0x0000000002FE0000-memory.dmp

Filesize
64KB

Download
memory/2116-1-0x0000000002FD0000-0x0000000002FE0000-memory.dmp

Filesize
64KB

Download