75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537

Analysis

max time kernel
37s
max time network
42s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30/10/2022, 17:51

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General

Target

75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe
Size

188KB
MD5

82f735eaced6c55c0dc63d3f3b3fc8de
SHA1

8ed0d411585847c9390cedace6841b8b6b3db150
SHA256

75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537
SHA512

b63ec6bda1a4f8b14c04c02774b104fb73d497b23ff8b1030bef8caba7b3bc2ca498ae1c3053e37ed9ce5520fa02bd42e50691ae873c8849069eafe941a6fdf1
SSDEEP

3072:tP6+AUTpld1ukuG4IymlfOSr2ROWKL6hnCygUliPOHR6aaYxV8nZD+NjNY8YDF/v:tC+AUTpld1bN/2ROL6hSOHR6aaYxanZ9

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	tazebama.dl_

Executes dropped EXE 1 IoCs

pid	Process
2020	tazebama.dl_

Loads dropped DLL 7 IoCs

pid	Process
1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe
1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe
1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe
1844	WerFault.exe
1844	WerFault.exe
1844	WerFault.exe
1844	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 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

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

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 8 IoCs

description	ioc	Process
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_
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_

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1844	2020	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2020	tazebama.dl_

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 2020	1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe	27
PID 1672 wrote to memory of 2020	1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe	27
PID 1672 wrote to memory of 2020	1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe	27
PID 1672 wrote to memory of 2020	1672	75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe	27
PID 2020 wrote to memory of 1844	2020	tazebama.dl_	28
PID 2020 wrote to memory of 1844	2020	tazebama.dl_	28
PID 2020 wrote to memory of 1844	2020	tazebama.dl_	28
PID 2020 wrote to memory of 1844	2020	tazebama.dl_	28

C:\Users\Admin\AppData\Local\Temp\75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe
"C:\Users\Admin\AppData\Local\Temp\75fc0bb3be819e8761eeb1039f1f24ddc58fb14cb93e81a0f2468347e20d9537.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1672
- 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:2020
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 320
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

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
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
C:\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dl_

Filesize
157KB

MD5
fba7260286ce6ba16493e99dbc6272ad

SHA1
a6bae3e536efcb519cd624292754a7bf715104b8

SHA256
3291f96dbe1bdcc47eb2fed1b8877d55b4dcd5407f47d86cf8be85791be52628

SHA512
99cafe1472e3b325ea7a1d3a068e83ca5c601c53a44f93c1f9f981f8fbe6961646e35094edf1e26d8ce6035936ffc81a92e7d2a316b4e883e6982a9a9c214aaa

Download Submit
\Users\tazebama.dll

Filesize
32KB

MD5
b6a03576e595afacb37ada2f1d5a0529

SHA1
d598d4d0e70dec2ffa2849edaeb4db94fedcc0b8

SHA256
1707eaf60aa91f3791aa5643bfa038e9d8141878d61f5d701ebac51f4ae7aaad

SHA512
181b7cc6479352fe2c53c3630d45a839cdeb74708be6709c2a75847a54de3ffc1fdac8450270dde7174ecb23e5cb002f8ce39032429a3112b1202f3381b8918c

Download Submit
memory/1672-62-0x0000000000160000-0x0000000000178000-memory.dmp

Filesize
96KB

Download
memory/1672-66-0x0000000001000000-0x000000000100A000-memory.dmp

Filesize
40KB

Download
memory/1672-63-0x0000000000160000-0x0000000000178000-memory.dmp

Filesize
96KB

Download
memory/1672-54-0x0000000001000000-0x000000000100A000-memory.dmp

Filesize
40KB

Download
memory/2020-64-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2020-60-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download