tinba | 671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5b

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 10:19

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General

Target

671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe
Size

45KB
MD5

e77c8252e5379339eed21ff907048af0
SHA1

6b2c50c129ed05d783146b2209a17ac3ac7659e9
SHA256

671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5b
SHA512

87912e72c1b1e47b527bb17203a3182fc9d2ea4cfbc12f6509cb52737c3e54be6f65a9b953a9822d4a00a5522faf4fae28b81cdbac14744e99224f0b118a6795
SSDEEP

768:thP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:PsWE9N5dFu53dsniQaB/xZ14n7zIF+qh

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\B12DB639 = "C:\\Users\\Admin\\AppData\\Roaming\\B12DB639\\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/2420-0-0x0000000000400000-0x000000000041D000-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	671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe
2700	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2700	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2700	2420	671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe	31
PID 2420 wrote to memory of 2700	2420	671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe	31
PID 2420 wrote to memory of 2700	2420	671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe	31
PID 2420 wrote to memory of 2700	2420	671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe	31
PID 2420 wrote to memory of 2700	2420	671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe	31
PID 2700 wrote to memory of 1200	2700	winver.exe	21
PID 2700 wrote to memory of 1108	2700	winver.exe	19
PID 2700 wrote to memory of 1168	2700	winver.exe	20
PID 2700 wrote to memory of 1200	2700	winver.exe	21
PID 2700 wrote to memory of 1864	2700	winver.exe	25

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

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1168

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe
  "C:\Users\Admin\AppData\Local\Temp\671fd9cec261a9fa966cf07fa237cfdc5a8de29483f391274465c2d876625b5bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2420
- - 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:2700

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1864

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/1108-27-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1108-28-0x0000000077A31000-0x0000000077A32000-memory.dmp

Filesize
4KB

Download
memory/1168-29-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1168-21-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1200-3-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1200-4-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1200-2-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1200-10-0x0000000077A31000-0x0000000077A32000-memory.dmp

Filesize
4KB

Download
memory/1200-32-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/1200-23-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/1864-31-0x0000000077A31000-0x0000000077A32000-memory.dmp

Filesize
4KB

Download
memory/1864-30-0x0000000001E80000-0x0000000001E86000-memory.dmp

Filesize
24KB

Download
memory/1864-26-0x0000000001E80000-0x0000000001E86000-memory.dmp

Filesize
24KB

Download
memory/2420-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2420-13-0x0000000001DD0000-0x00000000027D0000-memory.dmp

Filesize
10.0MB

Download
memory/2420-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2420-5-0x0000000001DD0000-0x00000000027D0000-memory.dmp

Filesize
10.0MB

Download
memory/2420-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2700-11-0x00000000779E0000-0x0000000077B89000-memory.dmp

Filesize
1.7MB

Download
memory/2700-9-0x0000000077BDF000-0x0000000077BE1000-memory.dmp

Filesize
8KB

Download
memory/2700-8-0x0000000077BDF000-0x0000000077BE0000-memory.dmp

Filesize
4KB

Download
memory/2700-7-0x0000000077BE0000-0x0000000077BE1000-memory.dmp

Filesize
4KB

Download
memory/2700-6-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2700-33-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download