tinba | 8d60a63be25dba5557f689d30d1cd7c35f122f4c38ad18f2d5f7a70973352b10

General

Target

ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe
Size

160KB
MD5

d589041bdfc1adbabfaaa7a333dd90d4
SHA1

70f7c06a22a0ae64127ec1b5903afbcdbf4dcc36
SHA256

ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc
SHA512

3ea1488eea9ff8c36f213ae2198c3b5fe227aa0097c09191e0962736df167f8218c82fa3ee88ace61c7d09fbb0653dec817a6b0da319cea7c9aa571dca06d452
SSDEEP

1536:BEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:KY+4MiIkLZJNAQ9J6v

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3372-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

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\F8F9008B = "C:\\Users\\Admin\\AppData\\Roaming\\F8F9008B\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1704	3720	WerFault.exe	86

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	ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.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
3720	winver.exe
3720	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3720	winver.exe
3392	Explorer.EXE
3392	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3392	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 3720	3372	ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe	86
PID 3372 wrote to memory of 3720	3372	ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe	86
PID 3372 wrote to memory of 3720	3372	ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe	86
PID 3372 wrote to memory of 3720	3372	ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe	86
PID 3720 wrote to memory of 3392	3720	winver.exe	55
PID 3720 wrote to memory of 2604	3720	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2604

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:3392
- C:\Users\Admin\AppData\Local\Temp\ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe
  "C:\Users\Admin\AppData\Local\Temp\ba87769b40804b895b8b524fe9a45b44d51ceb4966088c57c79407c3dc4616bc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3372
- - 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:3720
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3720 -s 352
      4⤵
      Program crash
      PID:1704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 3720 -ip 3720
1⤵
PID:1908

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/2604-20-0x00007FFE83270000-0x00007FFE83271000-memory.dmp

Filesize
4KB

Download
memory/2604-19-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/2604-16-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/2604-17-0x00007FFE830ED000-0x00007FFE830EE000-memory.dmp

Filesize
4KB

Download
memory/3372-10-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3372-1-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/3372-4-0x0000000002370000-0x0000000002D70000-memory.dmp

Filesize
10.0MB

Download
memory/3372-11-0x0000000002370000-0x0000000002D70000-memory.dmp

Filesize
10.0MB

Download
memory/3372-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3392-8-0x00007FFE83280000-0x00007FFE83281000-memory.dmp

Filesize
4KB

Download
memory/3392-12-0x00007FFE83260000-0x00007FFE83261000-memory.dmp

Filesize
4KB

Download
memory/3392-6-0x00007FFE830ED000-0x00007FFE830EE000-memory.dmp

Filesize
4KB

Download
memory/3392-2-0x0000000001500000-0x0000000001506000-memory.dmp

Filesize
24KB

Download
memory/3392-3-0x0000000001500000-0x0000000001506000-memory.dmp

Filesize
24KB

Download
memory/3720-7-0x00007FFE83050000-0x00007FFE83245000-memory.dmp

Filesize
2.0MB

Download
memory/3720-14-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/3720-5-0x00000000771A2000-0x00000000771A3000-memory.dmp

Filesize
4KB

Download
memory/3720-18-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads