tinba | 7dec99f552ae915e8d893117def085503389c677c6be34de129491a7b9fc8872

General

Target

020201ec7af31f0192c4c7b9d4ff88f0N.exe
Size

34KB
MD5

020201ec7af31f0192c4c7b9d4ff88f0
SHA1

2f75b57eb18a18244b6ee2def14cc3f1b00096bc
SHA256

7dec99f552ae915e8d893117def085503389c677c6be34de129491a7b9fc8872
SHA512

406bcc4256b4fbdb716a6f013e8cb713d902e36e1c07b88c75a5b45876b0b5d1078e8ef8049edf2695461785b2e1072791f3a5fbfdb8bbdd2de455d20ebb2afc
SSDEEP

768:Mp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:MpYoX58z1uirL98xMWnT0OQ9J2

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/1060-0-0x0000000000400000-0x0000000000417000-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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\35AE92E1 = "C:\\Users\\Admin\\AppData\\Roaming\\35AE92E1\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2580	4776	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	020201ec7af31f0192c4c7b9d4ff88f0N.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
4776	winver.exe
4776	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3472	Explorer.EXE
Token: SeCreatePagefilePrivilege	3472	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4776	winver.exe
3472	Explorer.EXE
3472	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3472	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 4776	1060	020201ec7af31f0192c4c7b9d4ff88f0N.exe	85
PID 1060 wrote to memory of 4776	1060	020201ec7af31f0192c4c7b9d4ff88f0N.exe	85
PID 1060 wrote to memory of 4776	1060	020201ec7af31f0192c4c7b9d4ff88f0N.exe	85
PID 1060 wrote to memory of 4776	1060	020201ec7af31f0192c4c7b9d4ff88f0N.exe	85
PID 4776 wrote to memory of 3472	4776	winver.exe	56
PID 4776 wrote to memory of 2628	4776	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2628

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:3472
- C:\Users\Admin\AppData\Local\Temp\020201ec7af31f0192c4c7b9d4ff88f0N.exe
  "C:\Users\Admin\AppData\Local\Temp\020201ec7af31f0192c4c7b9d4ff88f0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1060
- - 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:4776
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 352
      4⤵
      Program crash
      PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4776 -ip 4776
1⤵
PID:4888

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/1060-10-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1060-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/1060-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1060-4-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/1060-11-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/2628-16-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/3472-6-0x00007FFF97D2D000-0x00007FFF97D2E000-memory.dmp

Filesize
4KB

Download
memory/3472-8-0x00007FFF97EC0000-0x00007FFF97EC1000-memory.dmp

Filesize
4KB

Download
memory/3472-3-0x0000000000DF0000-0x0000000000DF6000-memory.dmp

Filesize
24KB

Download
memory/3472-12-0x00007FFF97EA0000-0x00007FFF97EA1000-memory.dmp

Filesize
4KB

Download
memory/3472-2-0x0000000000DF0000-0x0000000000DF6000-memory.dmp

Filesize
24KB

Download
memory/4776-5-0x0000000077612000-0x0000000077613000-memory.dmp

Filesize
4KB

Download
memory/4776-7-0x00007FFF97C90000-0x00007FFF97E85000-memory.dmp

Filesize
2.0MB

Download
memory/4776-14-0x0000000000900000-0x0000000000906000-memory.dmp

Filesize
24KB

Download
memory/4776-17-0x0000000000900000-0x0000000000906000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads