babuk | a3788d8cf37d691627bdbc5add07b598fdde66bdfcdb05299b0976715b392a61

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-en-20211208
submitted
15-12-2021 06:21

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General

Target

15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
Size

79KB
MD5

075951011cd90b9d7b202d7aa45fda8e
SHA1

19043c94c4b99ccd26aeed37236e534cf15a37ef
SHA256

15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3
SHA512

e782c80568a7424eabf2f725d90ecc861dd5d23f31812227e3bb1b00897f659c864e38d768359dcb6965012f5dd4da2cc37bad28a071cabce9e77317f717ad84

Score

10^/10

babuk ransomware

Malware Config

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

Modifies extensions of user files 15 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\SearchWait.crw => C:\Users\Admin\Pictures\SearchWait.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\StepRegister.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\SwitchPush.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File renamed	C:\Users\Admin\Pictures\GetSet.png => C:\Users\Admin\Pictures\GetSet.png.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\PushSuspend.raw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File renamed	C:\Users\Admin\Pictures\RepairUnprotect.tiff => C:\Users\Admin\Pictures\RepairUnprotect.tiff.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\RepairUnprotect.tiff.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File renamed	C:\Users\Admin\Pictures\RevokeReceive.crw => C:\Users\Admin\Pictures\RevokeReceive.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\RepairUnprotect.tiff	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\SearchWait.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File renamed	C:\Users\Admin\Pictures\StepRegister.crw => C:\Users\Admin\Pictures\StepRegister.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File renamed	C:\Users\Admin\Pictures\SwitchPush.crw => C:\Users\Admin\Pictures\SwitchPush.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\GetSet.png.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File renamed	C:\Users\Admin\Pictures\PushSuspend.raw => C:\Users\Admin\Pictures\PushSuspend.raw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeReceive.crw.babyk	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.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:

15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe

description	ioc	process
File opened (read-only)	\??\K:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\Z:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\W:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\Y:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\O:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\P:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\S:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\F:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\X:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\L:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\Q:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\R:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\T:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\G:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\H:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\J:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\U:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\I:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\V:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\M:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\E:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\A:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\B:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
File opened (read-only)	\??\N:	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.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

848 vssadmin.exe
972 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe

pid process

1552 15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1352 vssvc.exe
Token: SeRestorePrivilege 1352 vssvc.exe
Token: SeAuditPrivilege 1352 vssvc.exe

pid	process
848	vssadmin.exe
972	vssadmin.exe

pid	process
1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe

description	pid	process
Token: SeBackupPrivilege	1352	vssvc.exe
Token: SeRestorePrivilege	1352	vssvc.exe
Token: SeAuditPrivilege	1352	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.execmd.execmd.exe

description	pid	process	target process
PID 1552 wrote to memory of 736	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1552 wrote to memory of 736	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1552 wrote to memory of 736	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1552 wrote to memory of 736	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 736 wrote to memory of 848	736	cmd.exe	vssadmin.exe
PID 736 wrote to memory of 848	736	cmd.exe	vssadmin.exe
PID 736 wrote to memory of 848	736	cmd.exe	vssadmin.exe
PID 1552 wrote to memory of 1172	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1552 wrote to memory of 1172	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1552 wrote to memory of 1172	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1552 wrote to memory of 1172	1552	15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe	cmd.exe
PID 1172 wrote to memory of 972	1172	cmd.exe	vssadmin.exe
PID 1172 wrote to memory of 972	1172	cmd.exe	vssadmin.exe
PID 1172 wrote to memory of 972	1172	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe
"C:\Users\Admin\AppData\Local\Temp\15656e1825383c4749fadcc46f9825df6262ca2f1f98d895d64c840febe3d9d3.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:736

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:848

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1172

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:972

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1352

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

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Downloads

memory/736-56-0x0000000000000000-mapping.dmp

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memory/848-57-0x0000000000000000-mapping.dmp

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memory/972-59-0x0000000000000000-mapping.dmp

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memory/1172-58-0x0000000000000000-mapping.dmp

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memory/1552-55-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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