tinba | b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/12/2024, 22:40

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General

Target

b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe
Size

45KB
MD5

02c33fdb2c73a492c9af32f660491550
SHA1

830d64b6f43a27bca07bb9cbb514370e59bd6a34
SHA256

b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821
SHA512

e073909de3eb0b0737a09f460f33e114278eb8a71a65d5f813c7aaee06dc63c681f413cb84cfb39141e9f7b88b098ee243c467cdaecf1697cf98d998b9154122
SSDEEP

768:ZhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2P:DsWE9N5dFu53dsniQaB/xZ14n7zIF+q7

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\BFDFAB46 = "C:\\Users\\Admin\\AppData\\Roaming\\BFDFAB46\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1868-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2420	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 2420	1868	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	29
PID 1868 wrote to memory of 2420	1868	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	29
PID 1868 wrote to memory of 2420	1868	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	29
PID 1868 wrote to memory of 2420	1868	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	29
PID 1868 wrote to memory of 2420	1868	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	29
PID 2420 wrote to memory of 1216	2420	winver.exe	21
PID 2420 wrote to memory of 1108	2420	winver.exe	19
PID 2420 wrote to memory of 1176	2420	winver.exe	20
PID 2420 wrote to memory of 1216	2420	winver.exe	21
PID 2420 wrote to memory of 1496	2420	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1108

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1216
- C:\Users\Admin\AppData\Local\Temp\b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe
  "C:\Users\Admin\AppData\Local\Temp\b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1868
- - 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:2420

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1496

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/1108-26-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1108-27-0x0000000077151000-0x0000000077152000-memory.dmp

Filesize
4KB

Download
memory/1176-29-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1176-21-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1216-3-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1216-2-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1216-4-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1216-10-0x0000000077151000-0x0000000077152000-memory.dmp

Filesize
4KB

Download
memory/1216-32-0x0000000002D30000-0x0000000002D36000-memory.dmp

Filesize
24KB

Download
memory/1216-23-0x0000000002D30000-0x0000000002D36000-memory.dmp

Filesize
24KB

Download
memory/1496-25-0x0000000001E70000-0x0000000001E76000-memory.dmp

Filesize
24KB

Download
memory/1496-30-0x0000000001E70000-0x0000000001E76000-memory.dmp

Filesize
24KB

Download
memory/1496-31-0x0000000077151000-0x0000000077152000-memory.dmp

Filesize
4KB

Download
memory/1868-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1868-13-0x0000000001C00000-0x0000000002600000-memory.dmp

Filesize
10.0MB

Download
memory/1868-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1868-5-0x0000000001C00000-0x0000000002600000-memory.dmp

Filesize
10.0MB

Download
memory/1868-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2420-28-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2420-8-0x00000000772FF000-0x0000000077300000-memory.dmp

Filesize
4KB

Download
memory/2420-9-0x00000000772FF000-0x0000000077301000-memory.dmp

Filesize
8KB

Download
memory/2420-11-0x0000000077100000-0x00000000772A9000-memory.dmp

Filesize
1.7MB

Download
memory/2420-7-0x0000000077300000-0x0000000077301000-memory.dmp

Filesize
4KB

Download
memory/2420-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2420-37-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download