tinba | 4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24

General

Target

4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe
Size

96KB
MD5

0b38ba000d211aa790a33bc8debaa130
SHA1

449c0127dbb21a9d4151dbb46fb166c4c1f73d61
SHA256

4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24
SHA512

60f237fcb7d08b9501818e83206616d8a28f4d02380ed541b0aa6497a3faf0aa056fed2a2cec6a37f7a80003305bf8891cd9dbafbe85196d44869d0502457ef7
SSDEEP

1536:sE9QCVQ8B9/ui73aOtH0nrFgUhRwqjhurmKFct:OCVX/uMKacdhTjAqGct

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\50FA46D1 = "C:\\Users\\Admin\\AppData\\Roaming\\50FA46D1\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1472	4668	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	4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.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
4668	winver.exe
4668	winver.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4668	winver.exe
3576	Explorer.EXE
3576	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3576	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 4668	2936	4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe	85
PID 2936 wrote to memory of 4668	2936	4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe	85
PID 2936 wrote to memory of 4668	2936	4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe	85
PID 2936 wrote to memory of 4668	2936	4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe	85
PID 4668 wrote to memory of 3576	4668	winver.exe	56
PID 4668 wrote to memory of 2620	4668	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2620

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:3576
- C:\Users\Admin\AppData\Local\Temp\4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe
  "C:\Users\Admin\AppData\Local\Temp\4bbd83323898dd9007c5589d362ec4b92d17da70d0e91d32c06f569c30181f24N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2936
- - 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:4668
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 356
      4⤵
      Program crash
      PID:1472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4668 -ip 4668
1⤵
PID:2436

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

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Downloads

memory/2620-14-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2936-0-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2936-3-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/2936-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2936-8-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/3576-10-0x00007FFBA0760000-0x00007FFBA0761000-memory.dmp

Filesize
4KB

Download
memory/3576-1-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3576-2-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3576-5-0x00007FFBA05ED000-0x00007FFBA05EE000-memory.dmp

Filesize
4KB

Download
memory/3576-9-0x00007FFBA0780000-0x00007FFBA0781000-memory.dmp

Filesize
4KB

Download
memory/4668-4-0x0000000077E52000-0x0000000077E53000-memory.dmp

Filesize
4KB

Download
memory/4668-12-0x0000000000FC0000-0x0000000000FC6000-memory.dmp

Filesize
24KB

Download
memory/4668-6-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

Filesize
2.0MB

Download
memory/4668-15-0x0000000000FC0000-0x0000000000FC6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads