wastedlocker | 0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7v20210410
submitted
26/07/2021, 13:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe
Size

112KB
MD5

d01fc079881dc0d33a88e4f8df1ae7ce
SHA1

c40c8848808da12ef78c68de1e6477b862161a43
SHA256

0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821
SHA512

83bca79d1f0ac14c6d79685fd192964e7117e8c9c734036abddfdbb068c801ff38027a0812a2499e1d9e528a47af07150cafee27384b5a78b8fc32c23bd21130

Score

10^/10

wastedlocker cryptone discovery exploit packer ransomware

Malware Config

Signatures

WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker

CryptOne packer 4 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

resource	yara_rule
behavioral1/files/0x00040000000130e4-66.dat	cryptone
behavioral1/files/0x00040000000130e4-70.dat	cryptone
behavioral1/files/0x0005000000005668-72.dat	cryptone
behavioral1/files/0x0005000000005668-74.dat	cryptone

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 2 IoCs

pid	Process
1980	Ubpm:bin
1520	Ubpm.exe

Modifies extensions of user files 15 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File created	C:\Users\Admin\Pictures\ReceiveCompare.crw.tcwwasted_info	Ubpm.exe
File renamed	C:\Users\Admin\Pictures\UnblockSuspend.raw => C:\Users\Admin\Pictures\UnblockSuspend.raw.tcwwasted	Ubpm.exe
File opened for modification	C:\Users\Admin\Pictures\UnblockSuspend.raw.tcwwasted	Ubpm.exe
File renamed	C:\Users\Admin\Pictures\UnpublishSync.raw => C:\Users\Admin\Pictures\UnpublishSync.raw.tcwwasted	Ubpm.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishSync.raw.tcwwasted	Ubpm.exe
File renamed	C:\Users\Admin\Pictures\RenameHide.tiff => C:\Users\Admin\Pictures\RenameHide.tiff.tcwwasted	Ubpm.exe
File created	C:\Users\Admin\Pictures\SplitJoin.tif.tcwwasted_info	Ubpm.exe
File opened for modification	C:\Users\Admin\Pictures\SplitJoin.tif.tcwwasted	Ubpm.exe
File opened for modification	C:\Users\Admin\Pictures\ReceiveCompare.crw.tcwwasted	Ubpm.exe
File created	C:\Users\Admin\Pictures\RenameHide.tiff.tcwwasted_info	Ubpm.exe
File created	C:\Users\Admin\Pictures\UnblockSuspend.raw.tcwwasted_info	Ubpm.exe
File renamed	C:\Users\Admin\Pictures\ReceiveCompare.crw => C:\Users\Admin\Pictures\ReceiveCompare.crw.tcwwasted	Ubpm.exe
File opened for modification	C:\Users\Admin\Pictures\RenameHide.tiff.tcwwasted	Ubpm.exe
File renamed	C:\Users\Admin\Pictures\SplitJoin.tif => C:\Users\Admin\Pictures\SplitJoin.tif.tcwwasted	Ubpm.exe
File created	C:\Users\Admin\Pictures\UnpublishSync.raw.tcwwasted_info	Ubpm.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
1248	takeown.exe
880	icacls.exe

Deletes itself 1 IoCs

pid	Process
1316	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe
1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1248	takeown.exe
880	icacls.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Ubpm.exe	Ubpm:bin
File opened for modification	C:\Windows\SysWOW64\Ubpm.exe	attrib.exe

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1976	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Ubpm:bin	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1844	vssvc.exe
Token: SeRestorePrivilege	1844	vssvc.exe
Token: SeAuditPrivilege	1844	vssvc.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1980	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	26
PID 1688 wrote to memory of 1980	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	26
PID 1688 wrote to memory of 1980	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	26
PID 1688 wrote to memory of 1980	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	26
PID 1980 wrote to memory of 1976	1980	Ubpm:bin	27
PID 1980 wrote to memory of 1976	1980	Ubpm:bin	27
PID 1980 wrote to memory of 1976	1980	Ubpm:bin	27
PID 1980 wrote to memory of 1976	1980	Ubpm:bin	27
PID 1980 wrote to memory of 1248	1980	Ubpm:bin	31
PID 1980 wrote to memory of 1248	1980	Ubpm:bin	31
PID 1980 wrote to memory of 1248	1980	Ubpm:bin	31
PID 1980 wrote to memory of 1248	1980	Ubpm:bin	31
PID 1980 wrote to memory of 880	1980	Ubpm:bin	33
PID 1980 wrote to memory of 880	1980	Ubpm:bin	33
PID 1980 wrote to memory of 880	1980	Ubpm:bin	33
PID 1980 wrote to memory of 880	1980	Ubpm:bin	33
PID 1520 wrote to memory of 1096	1520	Ubpm.exe	37
PID 1520 wrote to memory of 1096	1520	Ubpm.exe	37
PID 1520 wrote to memory of 1096	1520	Ubpm.exe	37
PID 1520 wrote to memory of 1096	1520	Ubpm.exe	37
PID 1096 wrote to memory of 1036	1096	cmd.exe	39
PID 1096 wrote to memory of 1036	1096	cmd.exe	39
PID 1096 wrote to memory of 1036	1096	cmd.exe	39
PID 1096 wrote to memory of 1036	1096	cmd.exe	39
PID 1980 wrote to memory of 1840	1980	Ubpm:bin	41
PID 1980 wrote to memory of 1840	1980	Ubpm:bin	41
PID 1980 wrote to memory of 1840	1980	Ubpm:bin	41
PID 1980 wrote to memory of 1840	1980	Ubpm:bin	41
PID 1688 wrote to memory of 1316	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	43
PID 1688 wrote to memory of 1316	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	43
PID 1688 wrote to memory of 1316	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	43
PID 1688 wrote to memory of 1316	1688	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	43
PID 1840 wrote to memory of 1676	1840	cmd.exe	45
PID 1840 wrote to memory of 1676	1840	cmd.exe	45
PID 1840 wrote to memory of 1676	1840	cmd.exe	45
PID 1840 wrote to memory of 1676	1840	cmd.exe	45
PID 1316 wrote to memory of 732	1316	cmd.exe	46
PID 1316 wrote to memory of 732	1316	cmd.exe	46
PID 1316 wrote to memory of 732	1316	cmd.exe	46
PID 1316 wrote to memory of 732	1316	cmd.exe	46
PID 1096 wrote to memory of 2008	1096	cmd.exe	49
PID 1096 wrote to memory of 2008	1096	cmd.exe	49
PID 1096 wrote to memory of 2008	1096	cmd.exe	49
PID 1096 wrote to memory of 2008	1096	cmd.exe	49
PID 1840 wrote to memory of 1276	1840	cmd.exe	50
PID 1840 wrote to memory of 1276	1840	cmd.exe	50
PID 1840 wrote to memory of 1276	1840	cmd.exe	50
PID 1840 wrote to memory of 1276	1840	cmd.exe	50
PID 1316 wrote to memory of 204	1316	cmd.exe	51
PID 1316 wrote to memory of 204	1316	cmd.exe	51
PID 1316 wrote to memory of 204	1316	cmd.exe	51
PID 1316 wrote to memory of 204	1316	cmd.exe	51

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2008	attrib.exe
1276	attrib.exe
204	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe
"C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe"
1⤵
- Loads dropped DLL
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Roaming\Ubpm:bin
  C:\Users\Admin\AppData\Roaming\Ubpm:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1980
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:1976
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Ubpm.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1248
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Ubpm.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:880
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Ubpm" & del "C:\Users\Admin\AppData\Roaming\Ubpm"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1840
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:1676
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Ubpm"
      4⤵
      Views/modifies file attributes
      PID:1276
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe" & del "C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1316
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:732
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe"
    3⤵
    - Views/modifies file attributes
    PID:204

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1844

C:\Windows\SysWOW64\Ubpm.exe
C:\Windows\SysWOW64\Ubpm.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Ubpm.exe" & del "C:\Windows\SysWOW64\Ubpm.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:1036
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Ubpm.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:2008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

File Deletion

T1107

File and Directory Permissions Modification

T1222

Hidden Files and Directories

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1520-76-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1688-60-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/1688-62-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1688-61-0x0000000000220000-0x0000000000232000-memory.dmp

Filesize
72KB

Download
memory/1980-69-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads