e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f

Analysis

max time kernel
188s
max time network
30s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 03:48

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General

Target

e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
Size

3.7MB
MD5

4cfcb3953f4f41537fa5d1306f8909ba
SHA1

3039d358d22519f24021f53b01a511b61990505d
SHA256

e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f
SHA512

67e10cadceabcbd48deff0dbfe6ad294a3e084a64ef3f7bc25c4cfee1cf0d6ba43b8d03edeac80d12308abd4eac136174ef9abc74a86ec777b3d2b0f5d8c27ec
SSDEEP

98304:HYua2oT/y2oHCoAqPinoaWBxazxTrTi2O:la2kF+pO96L

Score

10^/10

bootkit evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	tazebama.dl_

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	tazebama.dl_

Executes dropped EXE 1 IoCs

pid	Process
592	tazebama.dl_

Loads dropped DLL 7 IoCs

pid	Process
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
560	WerFault.exe
560	WerFault.exe
560	WerFault.exe
560	WerFault.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\Wow6432Node\Microsoft\Windows\CurrentVersion\run	tazebama.dl_

Enumerates connected drives 3 TTPs 44 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

description	ioc	Process
File opened (read-only)	\??\R:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\Z:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\R:	tazebama.dl_
File opened (read-only)	\??\L:	tazebama.dl_
File opened (read-only)	\??\J:	tazebama.dl_
File opened (read-only)	\??\K:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\L:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\K:	tazebama.dl_
File opened (read-only)	\??\J:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\W:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\W:	tazebama.dl_
File opened (read-only)	\??\T:	tazebama.dl_
File opened (read-only)	\??\F:	tazebama.dl_
File opened (read-only)	\??\F:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\I:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\N:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\T:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\U:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\Z:	tazebama.dl_
File opened (read-only)	\??\X:	tazebama.dl_
File opened (read-only)	\??\S:	tazebama.dl_
File opened (read-only)	\??\Q:	tazebama.dl_
File opened (read-only)	\??\M:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\V:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\X:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\S:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\Y:	tazebama.dl_
File opened (read-only)	\??\V:	tazebama.dl_
File opened (read-only)	\??\P:	tazebama.dl_
File opened (read-only)	\??\H:	tazebama.dl_
File opened (read-only)	\??\H:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\N:	tazebama.dl_
File opened (read-only)	\??\M:	tazebama.dl_
File opened (read-only)	\??\E:	tazebama.dl_
File opened (read-only)	\??\E:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\P:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\U:	tazebama.dl_
File opened (read-only)	\??\O:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\Q:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\Y:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
File opened (read-only)	\??\O:	tazebama.dl_
File opened (read-only)	\??\I:	tazebama.dl_
File opened (read-only)	\??\G:	tazebama.dl_
File opened (read-only)	\??\G:	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	tazebama.dl_
File opened for modification	C:\autorun.inf	tazebama.dl_

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\EXCEL.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\GROOVE.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\INFOPATH.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSACCESS.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSPUB.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OIS.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\ONENOTE.EXE	tazebama.dl_
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OUTLOOK.EXE	tazebama.dl_

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
560	592	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
592	tazebama.dl_
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 592	948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe	28
PID 948 wrote to memory of 592	948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe	28
PID 948 wrote to memory of 592	948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe	28
PID 948 wrote to memory of 592	948	e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe	28
PID 592 wrote to memory of 560	592	tazebama.dl_	29
PID 592 wrote to memory of 560	592	tazebama.dl_	29
PID 592 wrote to memory of 560	592	tazebama.dl_	29
PID 592 wrote to memory of 560	592	tazebama.dl_	29

C:\Users\Admin\AppData\Local\Temp\e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe
"C:\Users\Admin\AppData\Local\Temp\e73057042415637a8a4a0c6075de776a168e69229b91e2802f2d80946026437f.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:948
- C:\Documents and Settings\tazebama.dl_
  "C:\Documents and Settings\tazebama.dl_"
  2⤵
  - Modifies visibility of file extensions in Explorer
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:592
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 592 -s 320
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:560

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x56c
1⤵
PID:628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Bootkit

T1067

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Documents and Settings\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
C:\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dl_

Filesize
151KB

MD5
a902beadfaeceacefb2bdf6cff750df7

SHA1
7da443bd9a3dc51985a4fcd8d5cbdfc4d2ae0fed

SHA256
43a634019e72b71a89a9904431b538f90350cbc468c67379cfc13db8fa19c1a1

SHA512
8709de4645f093598b3db692ef26b1e4fe34ead26c27e6da92d326aba70f7d3e50386d4e0359e56e0e0f88ca65f7a2a02daf0a6384462e81e9d7880d0463e464

Download Submit
\Users\tazebama.dll

Filesize
32KB

MD5
b6a03576e595afacb37ada2f1d5a0529

SHA1
d598d4d0e70dec2ffa2849edaeb4db94fedcc0b8

SHA256
1707eaf60aa91f3791aa5643bfa038e9d8141878d61f5d701ebac51f4ae7aaad

SHA512
181b7cc6479352fe2c53c3630d45a839cdeb74708be6709c2a75847a54de3ffc1fdac8450270dde7174ecb23e5cb002f8ce39032429a3112b1202f3381b8918c

Download Submit
memory/592-71-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/948-54-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/948-68-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/948-69-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/948-70-0x0000000000400000-0x0000000000789000-memory.dmp

Filesize
3.5MB

Download
memory/948-55-0x0000000000400000-0x0000000000789000-memory.dmp

Filesize
3.5MB

Download
memory/948-72-0x0000000000400000-0x0000000000789000-memory.dmp

Filesize
3.5MB

Download
memory/948-73-0x0000000002740000-0x0000000002748000-memory.dmp

Filesize
32KB

Download
memory/948-74-0x0000000002740000-0x0000000002748000-memory.dmp

Filesize
32KB

Download
memory/948-75-0x0000000002740000-0x0000000002748000-memory.dmp

Filesize
32KB

Download
memory/948-76-0x0000000002740000-0x0000000002748000-memory.dmp

Filesize
32KB

Download
memory/948-78-0x0000000000400000-0x0000000000789000-memory.dmp

Filesize
3.5MB

Download
memory/948-79-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/948-80-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download