tinba | a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e

General

Target

a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe
Size

45KB
MD5

88a45f1c930af04c295f7a89f8983fe5
SHA1

e25fc8b1d8a1880d3f194df90646c9032f2d76ab
SHA256

a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e
SHA512

e1e6e83ecc04a2963107b5679f0cdc03a0f808da15b3320e09e63b8088c71dcec16636b22e6af58215e0addf376f2001cd77ff29386fae05d73b82f5c84a9915
SSDEEP

768:NhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ23:vsWE9N5dFu53dsniQaB/xZ14n7zIF+qj

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
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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B5419390 = "C:\\Users\\Admin\\AppData\\Roaming\\B5419390\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2724-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
440	3840	WerFault.exe	84

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	a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.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
3840	winver.exe
3840	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3632	Explorer.EXE
Token: SeCreatePagefilePrivilege	3632	Explorer.EXE
Token: SeShutdownPrivilege	3632	Explorer.EXE
Token: SeCreatePagefilePrivilege	3632	Explorer.EXE
Token: SeShutdownPrivilege	3632	Explorer.EXE
Token: SeCreatePagefilePrivilege	3632	Explorer.EXE
Token: SeShutdownPrivilege	3632	Explorer.EXE
Token: SeCreatePagefilePrivilege	3632	Explorer.EXE
Token: SeShutdownPrivilege	3632	Explorer.EXE
Token: SeCreatePagefilePrivilege	3632	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3840	winver.exe
3632	Explorer.EXE
3632	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3632	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 3840	2724	a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe	84
PID 2724 wrote to memory of 3840	2724	a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe	84
PID 2724 wrote to memory of 3840	2724	a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe	84
PID 2724 wrote to memory of 3840	2724	a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe	84
PID 3840 wrote to memory of 3632	3840	winver.exe	56
PID 3840 wrote to memory of 2612	3840	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2612

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:3632
- C:\Users\Admin\AppData\Local\Temp\a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe
  "C:\Users\Admin\AppData\Local\Temp\a3543a25e839c4b2ef7fa68f923c174aa73f79cbdcafc701bfd9577ed20fbc9e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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:3840
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3840 -s 352
      4⤵
      Program crash
      PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3840 -ip 3840
1⤵
PID:408

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/2612-18-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/2612-16-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/2724-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2724-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/2724-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2724-11-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2724-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3632-8-0x00007FFCBCDA0000-0x00007FFCBCDA1000-memory.dmp

Filesize
4KB

Download
memory/3632-6-0x00007FFCBCC0D000-0x00007FFCBCC0E000-memory.dmp

Filesize
4KB

Download
memory/3632-12-0x00007FFCBCD80000-0x00007FFCBCD81000-memory.dmp

Filesize
4KB

Download
memory/3632-3-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3632-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3840-7-0x00007FFCBCB70000-0x00007FFCBCD65000-memory.dmp

Filesize
2.0MB

Download
memory/3840-5-0x00000000774E2000-0x00000000774E3000-memory.dmp

Filesize
4KB

Download
memory/3840-14-0x00000000022E0000-0x00000000022E6000-memory.dmp

Filesize
24KB

Download
memory/3840-17-0x00000000022E0000-0x00000000022E6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads