tinba | f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034ca

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20/09/2024, 20:10

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General

Target

f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe
Size

34KB
MD5

def73e0c17db0db42815ef3c1a2abc80
SHA1

77b17eaf08f9921594099d891a3221e2adadb372
SHA256

f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034ca
SHA512

fdfcc87c769965969451dd40ed79d16af6557b2109091f20d99211a70ad5f0965e781051b865cb618fbdb84f72e23a47daa6bd4fd03e822fe49c758271070bc0
SSDEEP

768:Np22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:NpYoX58z1uirL98xMWnT0OQ9J2

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
behavioral1/memory/2240-0-0x0000000000400000-0x0000000000417000-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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\9789BAA7 = "C:\\Users\\Admin\\AppData\\Roaming\\9789BAA7\\bin.exe"	winver.exe

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	f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe
2832	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2832	winver.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2832	2240	f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe	29
PID 2240 wrote to memory of 2832	2240	f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe	29
PID 2240 wrote to memory of 2832	2240	f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe	29
PID 2240 wrote to memory of 2832	2240	f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe	29
PID 2240 wrote to memory of 2832	2240	f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe	29
PID 2832 wrote to memory of 1184	2832	winver.exe	21
PID 2832 wrote to memory of 1060	2832	winver.exe	18
PID 2832 wrote to memory of 1152	2832	winver.exe	20
PID 2832 wrote to memory of 1184	2832	winver.exe	21

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1060

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1152

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1184
- C:\Users\Admin\AppData\Local\Temp\f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe
  "C:\Users\Admin\AppData\Local\Temp\f821a34ac3ecac67ef5a7a73e4d3007ea9de6095e99480837c66860e64e034caN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2240
- - 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:2832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1060-24-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1060-25-0x0000000077BD1000-0x0000000077BD2000-memory.dmp

Filesize
4KB

Download
memory/1152-20-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1152-27-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1184-4-0x0000000002530000-0x0000000002536000-memory.dmp

Filesize
24KB

Download
memory/1184-3-0x0000000002530000-0x0000000002536000-memory.dmp

Filesize
24KB

Download
memory/1184-2-0x0000000002530000-0x0000000002536000-memory.dmp

Filesize
24KB

Download
memory/1184-10-0x0000000077BD1000-0x0000000077BD2000-memory.dmp

Filesize
4KB

Download
memory/1184-22-0x00000000024E0000-0x00000000024E6000-memory.dmp

Filesize
24KB

Download
memory/1184-23-0x00000000024E0000-0x00000000024E6000-memory.dmp

Filesize
24KB

Download
memory/2240-5-0x0000000001D20000-0x0000000002720000-memory.dmp

Filesize
10.0MB

Download
memory/2240-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2240-13-0x0000000001D20000-0x0000000002720000-memory.dmp

Filesize
10.0MB

Download
memory/2240-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2240-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2832-6-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/2832-7-0x0000000077D80000-0x0000000077D81000-memory.dmp

Filesize
4KB

Download
memory/2832-8-0x0000000077D7F000-0x0000000077D80000-memory.dmp

Filesize
4KB

Download
memory/2832-9-0x0000000077D7F000-0x0000000077D81000-memory.dmp

Filesize
8KB

Download
memory/2832-11-0x0000000077B80000-0x0000000077D29000-memory.dmp

Filesize
1.7MB

Download
memory/2832-26-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download