tinba | 421aec6c53bcfef316f597f20d94aa5a983ace8df56773526e3f97fbacc4ce6f

General

Target

2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe
Size

34KB
MD5

5e568e602022cfdf3115b799366f737d
SHA1

ef429fe7b0e7e7b592737b49bbd5c2660c38ef7e
SHA256

2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49
SHA512

ea732f652bd1cc7ba8e38e4f851a3f4a70ac5a539036eee2edeb05c494fe86b247e84a0ca66cf88abdf9027ec4a9384edc1cfe12e5987e0c4bea740365397ed4
SSDEEP

768:up22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:upYoX58z1uirL98xMWnT0OQ9J2

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/4412-0-0x0000000000400000-0x0000000000417000-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\09F2B392 = "C:\\Users\\Admin\\AppData\\Roaming\\09F2B392\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
552	4572	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	2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.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
4572	winver.exe
4572	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4572	winver.exe
3360	Explorer.EXE
3360	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3360	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 4572	4412	2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe	85
PID 4412 wrote to memory of 4572	4412	2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe	85
PID 4412 wrote to memory of 4572	4412	2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe	85
PID 4412 wrote to memory of 4572	4412	2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe	85
PID 4572 wrote to memory of 3360	4572	winver.exe	56
PID 4572 wrote to memory of 2568	4572	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2568

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:3360
- C:\Users\Admin\AppData\Local\Temp\2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe
  "C:\Users\Admin\AppData\Local\Temp\2d40f3b0bc7abb34abea91904e7fb02a291ad1e1c3c28fae11dc0d31ede69b49.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4412
- - 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:4572
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 352
      4⤵
      Program crash
      PID:552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4572 -ip 4572
1⤵
PID:4592

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/2568-18-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2568-16-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3360-8-0x00007FFDE7680000-0x00007FFDE7681000-memory.dmp

Filesize
4KB

Download
memory/3360-3-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3360-2-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3360-12-0x00007FFDE7660000-0x00007FFDE7661000-memory.dmp

Filesize
4KB

Download
memory/3360-6-0x00007FFDE74ED000-0x00007FFDE74EE000-memory.dmp

Filesize
4KB

Download
memory/4412-4-0x0000000002400000-0x0000000002E00000-memory.dmp

Filesize
10.0MB

Download
memory/4412-10-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4412-11-0x0000000002400000-0x0000000002E00000-memory.dmp

Filesize
10.0MB

Download
memory/4412-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4412-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4572-7-0x00007FFDE7450000-0x00007FFDE7645000-memory.dmp

Filesize
2.0MB

Download
memory/4572-5-0x00000000777E2000-0x00000000777E3000-memory.dmp

Filesize
4KB

Download
memory/4572-14-0x00000000029A0000-0x00000000029A6000-memory.dmp

Filesize
24KB

Download
memory/4572-17-0x00000000029A0000-0x00000000029A6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads