babuk | 1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6

General

Target

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
Size

413KB
MD5

73ba54e1bf3cef8f2a46bbc2ed73cfb9
SHA1

3c9587ea9dc8039735398548fbc17ee50cf1b8b7
SHA256

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6
SHA512

e71eb7e2afe93855e448f270c3e8847ac7d46865cbd2d106de9b39567a163af0059c8ff8889a3dfe1b4c717f90f7f483e48fb421c3ea1bc9f6608be8edad950a

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\How To Restore Your Files.txt

Ransom Note

You are probably wondering why you are receiving a message from me. Yesterday, duncanregional.com got breached. You are probably not aware, but over the past few days we have been exfiltrating all of your data that we could get our hands on. We took over 150GB data + patient userdata from dba servers. What happened to your files? Your network was been penetrated. All of your files were encrypted using AES-256-CTR with ChaCha8 Cipher. WARNING: Don't try to decrypt your files, shadow copies were removed, recovery methods can lead to the impossibility of recovery of the certain files. We exclusively have decryption software for your situation, no decryption software is available in the public. Pay 60,000 (USD) in XMR (Monero) to this address: 4BExj4Z7n73316oWSd6k3Wj7A12PFVUSeHoobSPpaCJVdH6Z1oRBBssemrpwW5GyRt7xi3SQCeJzUa1uFoWWNySYCxoHv13 How do you buy XMR? https://bisq.network/ to buy XMR using fiat. Alternatively use a Cryptocurrency exchange to buy XMR: https://www.kraken.com/ Use this guide: https://www.getmonero.org/ After sending the specified amount to our wallet we will provide you with the decryption keys to unlock your files. If you do not respond (24 hour deadline, starting now), or we do not receive a response from you we will start the data to our potential buyers, and leak a partial, All of your clients (patients / employers) will be informed and given proof that their data has been compromised and publish everything in a public way in multiple places and outlets to get more customers interested in buying the data and also reporting the availability of this data to the appropriate news platforms. Contact: telegram: @redeyeg0d email: [email protected]

Emails

[email protected]

URLs

https://bisq.network/

https://www.getmonero.org/

Signatures

Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
ransomware babuk
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Executes dropped EXE 1 IoCs

Processes:

AddInProcess32.exe

pid process

240 AddInProcess32.exe

pid	process
240	AddInProcess32.exe

Modifies extensions of user files 15 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

AddInProcess32.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\OpenConnect.raw => C:\Users\Admin\Pictures\OpenConnect.raw.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\StartSet.raw => C:\Users\Admin\Pictures\StartSet.raw.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\StepEdit.tif.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\UnblockOut.raw.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\DenyProtect.png => C:\Users\Admin\Pictures\DenyProtect.png.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\DenyProtect.png.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\InstallUnprotect.png => C:\Users\Admin\Pictures\InstallUnprotect.png.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\InstallUnprotect.png.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\StepEdit.tif => C:\Users\Admin\Pictures\StepEdit.tif.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\WriteSubmit.tiff => C:\Users\Admin\Pictures\WriteSubmit.tiff.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\OpenConnect.raw.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\UnblockOut.raw => C:\Users\Admin\Pictures\UnblockOut.raw.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\StartSet.raw.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\WriteSubmit.tiff	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\WriteSubmit.tiff.babyk	AddInProcess32.exe

Loads dropped DLL 1 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe

pid process

1992 1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

AddInProcess32.exe

description	ioc	process
File opened (read-only)	\??\H:	AddInProcess32.exe
File opened (read-only)	\??\Z:	AddInProcess32.exe
File opened (read-only)	\??\X:	AddInProcess32.exe
File opened (read-only)	\??\U:	AddInProcess32.exe
File opened (read-only)	\??\P:	AddInProcess32.exe
File opened (read-only)	\??\K:	AddInProcess32.exe
File opened (read-only)	\??\L:	AddInProcess32.exe
File opened (read-only)	\??\V:	AddInProcess32.exe
File opened (read-only)	\??\B:	AddInProcess32.exe
File opened (read-only)	\??\N:	AddInProcess32.exe
File opened (read-only)	\??\Q:	AddInProcess32.exe
File opened (read-only)	\??\G:	AddInProcess32.exe
File opened (read-only)	\??\A:	AddInProcess32.exe
File opened (read-only)	\??\J:	AddInProcess32.exe
File opened (read-only)	\??\M:	AddInProcess32.exe
File opened (read-only)	\??\T:	AddInProcess32.exe
File opened (read-only)	\??\O:	AddInProcess32.exe
File opened (read-only)	\??\R:	AddInProcess32.exe
File opened (read-only)	\??\Y:	AddInProcess32.exe
File opened (read-only)	\??\I:	AddInProcess32.exe
File opened (read-only)	\??\S:	AddInProcess32.exe
File opened (read-only)	\??\F:	AddInProcess32.exe
File opened (read-only)	\??\W:	AddInProcess32.exe
File opened (read-only)	\??\E:	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe

description	pid	process	target process
PID 1992 set thread context of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

588 vssadmin.exe
1564 vssadmin.exe

pid	process
588	vssadmin.exe
1564	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exeAddInProcess32.exe

pid	process
1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
240	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
Token: SeBackupPrivilege	1660	vssvc.exe
Token: SeRestorePrivilege	1660	vssvc.exe
Token: SeAuditPrivilege	1660	vssvc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exeAddInProcess32.execmd.execmd.exe

description	pid	process	target process
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1992 wrote to memory of 240	1992	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 240 wrote to memory of 1828	240	AddInProcess32.exe	cmd.exe
PID 240 wrote to memory of 1828	240	AddInProcess32.exe	cmd.exe
PID 240 wrote to memory of 1828	240	AddInProcess32.exe	cmd.exe
PID 240 wrote to memory of 1828	240	AddInProcess32.exe	cmd.exe
PID 1828 wrote to memory of 588	1828	cmd.exe	vssadmin.exe
PID 1828 wrote to memory of 588	1828	cmd.exe	vssadmin.exe
PID 1828 wrote to memory of 588	1828	cmd.exe	vssadmin.exe
PID 240 wrote to memory of 568	240	AddInProcess32.exe	cmd.exe
PID 240 wrote to memory of 568	240	AddInProcess32.exe	cmd.exe
PID 240 wrote to memory of 568	240	AddInProcess32.exe	cmd.exe
PID 240 wrote to memory of 568	240	AddInProcess32.exe	cmd.exe
PID 568 wrote to memory of 1564	568	cmd.exe	vssadmin.exe
PID 568 wrote to memory of 1564	568	cmd.exe	vssadmin.exe
PID 568 wrote to memory of 1564	568	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
"C:\Users\Admin\AppData\Local\Temp\1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
  "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
  2⤵
  - Executes dropped EXE
  - Modifies extensions of user files
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:240
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1828
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:588
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:568
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1564

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1660

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
memory/240-65-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-68-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-78-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-76-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-73-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-61-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-62-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-64-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-69-0x000000000040ABC0-mapping.dmp

Download
memory/240-66-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/240-67-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/568-77-0x0000000000000000-mapping.dmp

Download
memory/588-75-0x0000000000000000-mapping.dmp

Download
memory/1564-79-0x0000000000000000-mapping.dmp

Download
memory/1828-74-0x0000000000000000-mapping.dmp

Download
memory/1992-57-0x00000000751C1000-0x00000000751C3000-memory.dmp

Filesize
8KB

Download
memory/1992-54-0x0000000000B50000-0x0000000000BBC000-memory.dmp

Filesize
432KB

Download
memory/1992-55-0x00000000004D0000-0x0000000000502000-memory.dmp

Filesize
200KB

Download
memory/1992-56-0x0000000000500000-0x0000000000516000-memory.dmp

Filesize
88KB

Download
memory/1992-59-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/1992-58-0x0000000004900000-0x000000000491A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads