tinba | 50a76d32cb4a4ba7d40a5bfe92ac7eb3b6b56d8d0c42515983de1211fc288cb1

General

Target

e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe
Size

88KB
MD5

a1e3882b857839a38efd9dc4072ae777
SHA1

24d2fe9d7bebafe20c33b0206e2b54f7b8644e40
SHA256

e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597
SHA512

1f3d486aa50ad2fc2963399cd8245d7ac012f9022aa059eff08a23f00ba107aca9cb4134201661f9dc03e2c863499bfe70d2ac563ae1ad070522282204ba99b4
SSDEEP

1536:x5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsN:x5fvp12UFKcD/6jwqWsN

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

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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\57E86AF3 = "C:\\Users\\Admin\\AppData\\Roaming\\57E86AF3\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3448	932	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	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.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
932	winver.exe
932	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
932	winver.exe
3424	Explorer.EXE
3424	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 932	2752	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	85
PID 2752 wrote to memory of 932	2752	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	85
PID 2752 wrote to memory of 932	2752	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	85
PID 2752 wrote to memory of 932	2752	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	85
PID 932 wrote to memory of 3424	932	winver.exe	56
PID 932 wrote to memory of 2156	932	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2156

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:3424
- C:\Users\Admin\AppData\Local\Temp\e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe
  "C:\Users\Admin\AppData\Local\Temp\e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2752
- - 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:932
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 932 -s 352
      4⤵
      Program crash
      PID:3448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 932 -ip 932
1⤵
PID:3204

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/932-16-0x0000000002970000-0x0000000002976000-memory.dmp

Filesize
24KB

Download
memory/932-4-0x00000000775F2000-0x00000000775F3000-memory.dmp

Filesize
4KB

Download
memory/932-7-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

Filesize
2.0MB

Download
memory/932-13-0x0000000002970000-0x0000000002976000-memory.dmp

Filesize
24KB

Download
memory/2156-18-0x00007FFEF22B0000-0x00007FFEF22B1000-memory.dmp

Filesize
4KB

Download
memory/2156-15-0x00000000000A0000-0x00000000000A6000-memory.dmp

Filesize
24KB

Download
memory/2752-10-0x0000000002050000-0x0000000002A50000-memory.dmp

Filesize
10.0MB

Download
memory/2752-3-0x0000000002050000-0x0000000002A50000-memory.dmp

Filesize
10.0MB

Download
memory/2752-0-0x0000000002030000-0x0000000002031000-memory.dmp

Filesize
4KB

Download
memory/2752-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3424-6-0x00007FFEF212C000-0x00007FFEF212D000-memory.dmp

Filesize
4KB

Download
memory/3424-11-0x00007FFEF22A0000-0x00007FFEF22A1000-memory.dmp

Filesize
4KB

Download
memory/3424-8-0x00007FFEF22C0000-0x00007FFEF22C1000-memory.dmp

Filesize
4KB

Download
memory/3424-5-0x00007FFEF212D000-0x00007FFEF212E000-memory.dmp

Filesize
4KB

Download
memory/3424-2-0x00000000014B0000-0x00000000014B6000-memory.dmp

Filesize
24KB

Download
memory/3424-1-0x00000000014B0000-0x00000000014B6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads