7159a202d1129ee4685bc305f4c5a1b8ce664a129257af0a95acadc9b22b23d4

General

Target

sample.exe
Size

79KB
MD5

8373085c527b21c1b76748d65aac4d19
SHA1

9f87288ce3c3dcb182bb468a348813f08be3b42b
SHA256

25835a890a218fd26bfd8b23696576402b5eb8a4c9af4a51529e14c4f00a9cce
SHA512

fafccdb48a7c3b2c0efecf5934936e9faafec90619b657c3b525e61b4611870432fc0695f2d108438730d93d8b7832a90d50191c48f43fe6cb1f2f38caa717aa

Score

10^/10

ransomware

Malware Config

Extracted

Path

C:\How To Decrypt.txt

Ransom Note

Blaze Ransomware Your data are stolen and encrypted The data will be published on TOR website http://imugmohnfb6akqz7jb6rqjusiwgnthjgm37mjygondgkwwyw3hwudkqd.onion if you do not pay the ransom You can contact us and decrypt one file for free. gosupp@email.cz Caution!! Do not modify encrypted files, otherwise you may lose all your files forever!

Emails

gosupp@email.cz

URLs

http://imugmohnfb6akqz7jb6rqjusiwgnthjgm37mjygondgkwwyw3hwudkqd.onion

Signatures

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 14 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

sample.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\MeasureCompress.tif => C:\Users\Admin\Pictures\MeasureCompress.tif.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureCompress.tif.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\OpenSync.tiff.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\InvokeOpen.raw.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\SwitchRead.tiff	sample.exe
File renamed	C:\Users\Admin\Pictures\PopSelect.crw => C:\Users\Admin\Pictures\PopSelect.crw.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\OpenSync.tiff	sample.exe
File renamed	C:\Users\Admin\Pictures\MeasureInitialize.raw => C:\Users\Admin\Pictures\MeasureInitialize.raw.blaze	sample.exe
File renamed	C:\Users\Admin\Pictures\OpenSync.tiff => C:\Users\Admin\Pictures\OpenSync.tiff.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\SwitchRead.tiff.blaze	sample.exe
File renamed	C:\Users\Admin\Pictures\InvokeOpen.raw => C:\Users\Admin\Pictures\InvokeOpen.raw.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureInitialize.raw.blaze	sample.exe
File opened for modification	C:\Users\Admin\Pictures\PopSelect.crw.blaze	sample.exe
File renamed	C:\Users\Admin\Pictures\SwitchRead.tiff => C:\Users\Admin\Pictures\SwitchRead.tiff.blaze	sample.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:

sample.exe

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

1628 vssadmin.exe
1864 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

sample.exe

pid process

1868 sample.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1756 vssvc.exe
Token: SeRestorePrivilege 1756 vssvc.exe
Token: SeAuditPrivilege 1756 vssvc.exe

pid	process
1628	vssadmin.exe
1864	vssadmin.exe

pid	process
1868	sample.exe

description	pid	process
Token: SeBackupPrivilege	1756	vssvc.exe
Token: SeRestorePrivilege	1756	vssvc.exe
Token: SeAuditPrivilege	1756	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

sample.execmd.execmd.exe

description	pid	process	target process
PID 1868 wrote to memory of 1456	1868	sample.exe	cmd.exe
PID 1868 wrote to memory of 1456	1868	sample.exe	cmd.exe
PID 1868 wrote to memory of 1456	1868	sample.exe	cmd.exe
PID 1868 wrote to memory of 1456	1868	sample.exe	cmd.exe
PID 1456 wrote to memory of 1628	1456	cmd.exe	vssadmin.exe
PID 1456 wrote to memory of 1628	1456	cmd.exe	vssadmin.exe
PID 1456 wrote to memory of 1628	1456	cmd.exe	vssadmin.exe
PID 1868 wrote to memory of 1008	1868	sample.exe	cmd.exe
PID 1868 wrote to memory of 1008	1868	sample.exe	cmd.exe
PID 1868 wrote to memory of 1008	1868	sample.exe	cmd.exe
PID 1868 wrote to memory of 1008	1868	sample.exe	cmd.exe
PID 1008 wrote to memory of 1864	1008	cmd.exe	vssadmin.exe
PID 1008 wrote to memory of 1864	1008	cmd.exe	vssadmin.exe
PID 1008 wrote to memory of 1864	1008	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1868

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:1628

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1008

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:1864

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1756

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How To Decrypt.txt
1⤵
PID:1320

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Desktop\How To Decrypt.txt
Filesize
356B

MD5
c54b02ea6657c548b6c65145f3df9b26

SHA1
9c05ca4ce5d8cf556a1f2d1f008d429eef63cd15

SHA256
9b9bc3565540f208843140266a89959e08011f4c3a45c4831dcca99e446c9201

SHA512
30f7c30ae61b8530f4759b512066b9a486214d2961fea6d70dbf1652f911774b40603dc35df71c77640ed2ce6a587dae21cc72bd71aad8d67c01f4ef262951aa

Download Submit
memory/1008-57-0x0000000000000000-mapping.dmp

Download
memory/1320-59-0x000007FEFB5B1000-0x000007FEFB5B3000-memory.dmp

Filesize
8KB

Download
memory/1456-55-0x0000000000000000-mapping.dmp

Download
memory/1628-56-0x0000000000000000-mapping.dmp

Download
memory/1864-58-0x0000000000000000-mapping.dmp

Download
memory/1868-54-0x00000000759E1000-0x00000000759E3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads