tinba | a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420c

General

Target

a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe
Size

59KB
MD5

935d5194fcae9d6a15454791aea05570
SHA1

d76b25ea4eda0b2b2c20448e70f76361f9d21cd5
SHA256

a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420c
SHA512

213a7fe220f226ea31469d8242fc2e9aa344f87c9e4306d7ae021a930567ff50dcfe478eeb61e6de3ffc6f6968c41eea4941832c96908006cf478c1874df01d2
SSDEEP

768:A+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J1:A+mFM2HXKZgiFP7xIksu+XM5O9J1

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6E68F67E = "C:\\Users\\Admin\\AppData\\Roaming\\6E68F67E\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5016	856	WerFault.exe	85

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
856	winver.exe
856	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
856	winver.exe
3448	Explorer.EXE
3448	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3448	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 856	3204	a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe	85
PID 3204 wrote to memory of 856	3204	a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe	85
PID 3204 wrote to memory of 856	3204	a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe	85
PID 3204 wrote to memory of 856	3204	a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe	85
PID 856 wrote to memory of 3448	856	winver.exe	56
PID 856 wrote to memory of 2540	856	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2540

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3448
- C:\Users\Admin\AppData\Local\Temp\a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe
  "C:\Users\Admin\AppData\Local\Temp\a3f04ec478266c809fd6bab5b0f19ceefe41c519101dd5e0e78b104ebb57420cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3204
- - 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:856
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 352
      4⤵
      Program crash
      PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 856 -ip 856
1⤵
PID:4056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/856-4-0x0000000077C92000-0x0000000077C93000-memory.dmp

Filesize
4KB

Download
memory/856-16-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/856-12-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/856-6-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/2540-15-0x00007FFC1908D000-0x00007FFC1908E000-memory.dmp

Filesize
4KB

Download
memory/2540-14-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/2540-17-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/2540-18-0x00007FFC19210000-0x00007FFC19211000-memory.dmp

Filesize
4KB

Download
memory/3204-3-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/3204-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3204-9-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Filesize
10.0MB

Download
memory/3204-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/3448-5-0x00007FFC1908D000-0x00007FFC1908E000-memory.dmp

Filesize
4KB

Download
memory/3448-7-0x00007FFC19220000-0x00007FFC19221000-memory.dmp

Filesize
4KB

Download
memory/3448-10-0x00007FFC19200000-0x00007FFC19201000-memory.dmp

Filesize
4KB

Download
memory/3448-2-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3448-1-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads