a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed

General

Target

a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe
Size

230KB
MD5

2c2fa72b1cfcc4e452920f9ab0994177
SHA1

003ada28dfba1ebe2396acf5f0c29a80c9fad266
SHA256

a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed
SHA512

62009ea9c3f49bfda731d657f525049e04ba61ae13a785177bbcb96f8f48f1a60ed07003b8957410d2a81cbfde7d6d78024567d7a42d42ca0f41ef380809b302
SSDEEP

6144:adT3RRJxSu6ZGGexdkXyeKY6o2aTYRCzEacG:qhRv9xdkXyeKtWT76G

Score

10^/10

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

Processes:

tazebama.dl_

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	tazebama.dl_

Nirsoft 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1752-132-0x0000000000400000-0x0000000000412000-memory.dmp	Nirsoft
behavioral2/memory/1752-137-0x0000000000400000-0x0000000000412000-memory.dmp	Nirsoft
behavioral2/memory/1752-140-0x0000000000400000-0x0000000000412000-memory.dmp	Nirsoft
behavioral2/memory/1752-142-0x0000000000400000-0x0000000000412000-memory.dmp	Nirsoft

Executes dropped EXE 1 IoCs

Processes:

tazebama.dl_

pid process

1516 tazebama.dl_
Loads dropped DLL 1 IoCs

Processes:

a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe

pid process

1752 a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe
Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Processes:

tazebama.dl_

description ioc process

Key created \REGISTRY\MACHINE\software\WOW6432Node\Microsoft\Windows\CurrentVersion\run tazebama.dl_

pid	process
1516	tazebama.dl_

pid	process
1752	a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\software\WOW6432Node\Microsoft\Windows\CurrentVersion\run	tazebama.dl_

Enumerates connected drives 3 TTPs 22 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:

tazebama.dl_

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

Drops autorun.inf file 1 TTPs 2 IoCs

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

Replication Through Removable Media

T1091

Processes:

tazebama.dl_

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

Drops file in Program Files directory 1 IoCs

Processes:

tazebama.dl_

description ioc process

File opened for modification C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE tazebama.dl_
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2388 1516 WerFault.exe tazebama.dl_
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

tazebama.dl_

pid process

1516 tazebama.dl_
1516 tazebama.dl_
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe

pid process

1752 a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe

description	ioc	process
File opened for modification	C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE	tazebama.dl_

pid	pid_target	process	target process
2388	1516	WerFault.exe	tazebama.dl_

pid	process
1516	tazebama.dl_
1516	tazebama.dl_

pid	process
1752	a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe

description	pid	process	target process
PID 1752 wrote to memory of 1516	1752	a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe	tazebama.dl_
PID 1752 wrote to memory of 1516	1752	a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe	tazebama.dl_
PID 1752 wrote to memory of 1516	1752	a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe	tazebama.dl_

C:\Users\Admin\AppData\Local\Temp\a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe
"C:\Users\Admin\AppData\Local\Temp\a0d5a5f89d62230b26c57bade0df0ab721110925a6440f306043b5410b18c3ed.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Documents and Settings\tazebama.dl_
  "C:\Documents and Settings\tazebama.dl_"
  2⤵
  - Modifies visibility of file extensions 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
  PID:1516
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 652
    3⤵
    - Program crash
    PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1516 -ip 1516
1⤵
PID:4596

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Documents and Settings\tazebama.dl_

Filesize
157KB

MD5
87d42c88bd871be7f44f69e34ceaab79

SHA1
123de1f20e98905a77a09d6fc65fb85730309fec

SHA256
77109419bbad0d4fee337c659555e3ec9dc75f1eaff1c66d9927a33d16d0584f

SHA512
314111ce73a9a6ed6b43a1afb9f469e034321aac3f3b547b9329639944116fc92faa15e8e6aa06c4f2eaf7e17f9d4dcafc0752a3c2e34e96941b99ce015ef72e

Download Submit
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe

Filesize
2.6MB

MD5
f200bb5ea7cc86a305c1a5d437334ea6

SHA1
863e50bbabdfa47cb846996ca7b322fa0eb7c0dc

SHA256
517367bea75ac6a6ced2f1d4a9d3d8c30679452cc38b422fdeae23214c36ee1d

SHA512
0ae4a2c29ba6c6df0c38cd0ec8ef26b6bbcdf83b8f986313419ddd239f13356d18e2bdc6611c80462d4a26730617c813043c02ad5ff79704acdc221ecb7f9381

Download Submit
C:\Users\tazebama.dl_

Filesize
157KB

MD5
87d42c88bd871be7f44f69e34ceaab79

SHA1
123de1f20e98905a77a09d6fc65fb85730309fec

SHA256
77109419bbad0d4fee337c659555e3ec9dc75f1eaff1c66d9927a33d16d0584f

SHA512
314111ce73a9a6ed6b43a1afb9f469e034321aac3f3b547b9329639944116fc92faa15e8e6aa06c4f2eaf7e17f9d4dcafc0752a3c2e34e96941b99ce015ef72e

Download Submit
C:\Users\tazebama.dll

Filesize
32KB

MD5
b6a03576e595afacb37ada2f1d5a0529

SHA1
d598d4d0e70dec2ffa2849edaeb4db94fedcc0b8

SHA256
1707eaf60aa91f3791aa5643bfa038e9d8141878d61f5d701ebac51f4ae7aaad

SHA512
181b7cc6479352fe2c53c3630d45a839cdeb74708be6709c2a75847a54de3ffc1fdac8450270dde7174ecb23e5cb002f8ce39032429a3112b1202f3381b8918c

Download Submit
memory/1516-134-0x0000000000000000-mapping.dmp

Download
memory/1516-138-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1516-141-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1752-132-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1752-137-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1752-140-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1752-142-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads