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: yourd34d@ctemplar.com

Emails

yourd34d@ctemplar.com

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

1840 AddInProcess32.exe

pid	process
1840	AddInProcess32.exe

Modifies extensions of user files 7 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

AddInProcess32.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\UnregisterInitialize.tiff	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\StepCopy.tif => C:\Users\Admin\Pictures\StepCopy.tif.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\StepCopy.tif.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\UnregisterInitialize.tiff => C:\Users\Admin\Pictures\UnregisterInitialize.tiff.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\UnregisterInitialize.tiff.babyk	AddInProcess32.exe
File renamed	C:\Users\Admin\Pictures\ConfirmAssert.png => C:\Users\Admin\Pictures\ConfirmAssert.png.babyk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\Pictures\ConfirmAssert.png.babyk	AddInProcess32.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:

AddInProcess32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	AddInProcess32.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)	\??\E:	AddInProcess32.exe
File opened (read-only)	\??\R:	AddInProcess32.exe
File opened (read-only)	\??\S:	AddInProcess32.exe
File opened (read-only)	\??\Q:	AddInProcess32.exe
File opened (read-only)	\??\W:	AddInProcess32.exe
File opened (read-only)	\??\H:	AddInProcess32.exe
File opened (read-only)	\??\B:	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)	\??\F:	AddInProcess32.exe
File opened (read-only)	\??\J:	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)	\??\N:	AddInProcess32.exe
File opened (read-only)	\??\M:	AddInProcess32.exe
File opened (read-only)	\??\T:	AddInProcess32.exe
File opened (read-only)	\??\Y:	AddInProcess32.exe
File opened (read-only)	\??\I:	AddInProcess32.exe
File opened (read-only)	\??\O:	AddInProcess32.exe
File opened (read-only)	\??\A:	AddInProcess32.exe
File opened (read-only)	\??\G:	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe

description	pid	process	target process
PID 4948 set thread context of 1840	4948	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

4464 vssadmin.exe
5064 vssadmin.exe

pid	process
4464	vssadmin.exe
5064	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exeAddInProcess32.exe

pid	process
4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
1840	AddInProcess32.exe
1840	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
Token: SeBackupPrivilege	4700	vssvc.exe
Token: SeRestorePrivilege	4700	vssvc.exe
Token: SeAuditPrivilege	4700	vssvc.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exeAddInProcess32.execmd.execmd.exe

description	pid	process	target process
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 4948 wrote to memory of 1840	4948	1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe	AddInProcess32.exe
PID 1840 wrote to memory of 4952	1840	AddInProcess32.exe	cmd.exe
PID 1840 wrote to memory of 4952	1840	AddInProcess32.exe	cmd.exe
PID 4952 wrote to memory of 4464	4952	cmd.exe	vssadmin.exe
PID 4952 wrote to memory of 4464	4952	cmd.exe	vssadmin.exe
PID 1840 wrote to memory of 2536	1840	AddInProcess32.exe	cmd.exe
PID 1840 wrote to memory of 2536	1840	AddInProcess32.exe	cmd.exe
PID 2536 wrote to memory of 5064	2536	cmd.exe	vssadmin.exe
PID 2536 wrote to memory of 5064	2536	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe
"C:\Users\Admin\AppData\Local\Temp\1957c3be12da913243a370f30e478579daa0ef966577c0eac23f9da581cb5ad6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4948

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
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:4952

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:4464

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:2536

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:5064

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4700

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
Filesize
42KB

MD5
9827ff3cdf4b83f9c86354606736ca9c

SHA1
e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

SHA256
c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

SHA512
8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

Download Submit
memory/1840-146-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1840-144-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1840-142-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1840-140-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1840-136-0x0000000000000000-mapping.dmp

Download
memory/1840-137-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2536-145-0x0000000000000000-mapping.dmp

Download
memory/4464-143-0x0000000000000000-mapping.dmp

Download
memory/4948-135-0x0000000008090000-0x00000000080B2000-memory.dmp

Filesize
136KB

Download
memory/4948-134-0x00000000054E0000-0x00000000054EA000-memory.dmp

Filesize
40KB

Download
memory/4948-130-0x00000000003C0000-0x000000000042C000-memory.dmp

Filesize
432KB

Download
memory/4948-133-0x0000000004E90000-0x0000000004F2C000-memory.dmp

Filesize
624KB

Download
memory/4948-132-0x0000000004DF0000-0x0000000004E82000-memory.dmp

Filesize
584KB

Download
memory/4948-131-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download
memory/4952-141-0x0000000000000000-mapping.dmp

Download
memory/5064-147-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads