tinba | b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9

Analysis

max time kernel
140s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 17:34

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General

Target

b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe
Size

88KB
MD5

afae84d54e7bc151f0b27c17527af901
SHA1

7eff14b39589d0e4015f34ea8b81140e1dfc0c96
SHA256

b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9
SHA512

48aadf2a312ed82a693adc4f630c06a1c7a72905e83b1b98297c5492b420c2b88fe3dd2069e2d3e9a31c619c04586dd84b892a6ce6ec3340ae30f7dd7a6a9c6d
SSDEEP

1536:j5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:j5fvp12UFKcD/6jwqWsNI

Score

10^/10

tinba banker discovery persistence trojan

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba
Tinba family
tinba

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

winver.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D7BDE9F4 = "C:\\Users\\Admin\\AppData\\Roaming\\D7BDE9F4\\bin.exe"	winver.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3660 4996 WerFault.exe winver.exe

pid	pid_target	process	target process
3660	4996	WerFault.exe	winver.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exewinver.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

winver.exe

pid process

4996 winver.exe
4996 winver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Explorer.EXE

description pid process

Token: SeShutdownPrivilege 3504 Explorer.EXE
Token: SeCreatePagefilePrivilege 3504 Explorer.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

winver.exe

pid process

4996 winver.exe

pid	process
4996	winver.exe
4996	winver.exe

description	pid	process
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

pid	process
4996	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exewinver.exe

description	pid	process	target process
PID 1228 wrote to memory of 4996	1228	b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe	winver.exe
PID 1228 wrote to memory of 4996	1228	b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe	winver.exe
PID 1228 wrote to memory of 4996	1228	b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe	winver.exe
PID 1228 wrote to memory of 4996	1228	b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe	winver.exe
PID 4996 wrote to memory of 3504	4996	winver.exe	Explorer.EXE
PID 4996 wrote to memory of 2532	4996	winver.exe	sihost.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2532

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3504
- C:\Users\Admin\AppData\Local\Temp\b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe
  "C:\Users\Admin\AppData\Local\Temp\b7abba957fd16dd0f8c20895e38ec6d11772a0dc9917f90807509f79db7ab9a9.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4996
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 352
      4⤵
      Program crash
      PID:3660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4996 -ip 4996
1⤵
PID:1544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1228-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/1228-3-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/1228-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1228-8-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/2532-12-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/3504-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/3504-5-0x00007FF949DED000-0x00007FF949DEE000-memory.dmp

Filesize
4KB

Download
memory/4996-4-0x0000000077862000-0x0000000077863000-memory.dmp

Filesize
4KB

Download
memory/4996-6-0x00007FF949D50000-0x00007FF949F45000-memory.dmp

Filesize
2.0MB

Download
memory/4996-10-0x00000000012E0000-0x00000000012E6000-memory.dmp

Filesize
24KB

Download
memory/4996-13-0x00000000012E0000-0x00000000012E6000-memory.dmp

Filesize
24KB

Download