tinba | 68d706120e359e90a8ea880ab06212a17c2eaf2d4cdb07d156b9c3173e13043c

General

Target

3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe
Size

160KB
MD5

3d451f59f0a6bb995448c2a162023041
SHA1

6e5eff0c97c1d8f018285f9ad1a364f175dd3ea0
SHA256

68d706120e359e90a8ea880ab06212a17c2eaf2d4cdb07d156b9c3173e13043c
SHA512

c84d2002cd3848dc4209619dade8f293d80ca51143a2930f79d4fb5764a40a696ba815261bf4d6201a6632108c56e7abb5da411b7d157243b64647cef36d09d1
SSDEEP

1536:wEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:jY+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

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AF2BB5A4 = "C:\\Users\\Admin\\AppData\\Roaming\\AF2BB5A4\\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/4920-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3588	1836	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	3d451f59f0a6bb995448c2a162023041_JaffaCakes118.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
1836	winver.exe
1836	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1836	winver.exe
3452	Explorer.EXE
3452	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3452	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 1836	4920	3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe	86
PID 4920 wrote to memory of 1836	4920	3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe	86
PID 4920 wrote to memory of 1836	4920	3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe	86
PID 4920 wrote to memory of 1836	4920	3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe	86
PID 1836 wrote to memory of 3452	1836	winver.exe	56
PID 1836 wrote to memory of 696	1836	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:696

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:3452
- C:\Users\Admin\AppData\Local\Temp\3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3d451f59f0a6bb995448c2a162023041_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4920
- - 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:1836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 352
      4⤵
      Program crash
      PID:3588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1836 -ip 1836
1⤵
PID:4456

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/696-17-0x00000000009A0000-0x00000000009A6000-memory.dmp

Filesize
24KB

Download
memory/696-14-0x00000000009A0000-0x00000000009A6000-memory.dmp

Filesize
24KB

Download
memory/696-15-0x00007FFF09E2D000-0x00007FFF09E2E000-memory.dmp

Filesize
4KB

Download
memory/1836-7-0x00007FFF09D90000-0x00007FFF09F85000-memory.dmp

Filesize
2.0MB

Download
memory/1836-16-0x00000000012F0000-0x00000000012F6000-memory.dmp

Filesize
24KB

Download
memory/1836-12-0x00000000012F0000-0x00000000012F6000-memory.dmp

Filesize
24KB

Download
memory/1836-5-0x0000000077D42000-0x0000000077D43000-memory.dmp

Filesize
4KB

Download
memory/3452-8-0x00007FFF09FC0000-0x00007FFF09FC1000-memory.dmp

Filesize
4KB

Download
memory/3452-6-0x00007FFF09E2D000-0x00007FFF09E2E000-memory.dmp

Filesize
4KB

Download
memory/3452-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3452-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3452-18-0x00007FFF09FA0000-0x00007FFF09FA1000-memory.dmp

Filesize
4KB

Download
memory/4920-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4920-9-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4920-10-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/4920-4-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/4920-1-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads