tinba | 03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 19:14

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General

Target

03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe
Size

610KB
MD5

8a11eadd67a98e89e5c3e999e787dfe2
SHA1

2a13461956a496edf0250a17a68361f21ddde691
SHA256

03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b
SHA512

0a3cc601cd4352269897b54bab9ee35ecdc7406a8aa49d4e4560b8b159c51e867f629fd2cf0c192d653d5201e0b25c2e28db9f561468244ddc9bcbcd692fd169
SSDEEP

12288:AATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:OT+KjUdQqboyyWoK1NGqzuhb

Score

10^/10

tinba banker discovery persistence trojan

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\62EC5103 = "C:\\Users\\Admin\\AppData\\Roaming\\62EC5103\\bin.exe"	winver.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe
2776	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2776	winver.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2776	2696	03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe	31
PID 2696 wrote to memory of 2776	2696	03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe	31
PID 2696 wrote to memory of 2776	2696	03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe	31
PID 2696 wrote to memory of 2776	2696	03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe	31
PID 2696 wrote to memory of 2776	2696	03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe	31
PID 2776 wrote to memory of 1200	2776	winver.exe	21
PID 2776 wrote to memory of 1084	2776	winver.exe	18
PID 2776 wrote to memory of 1148	2776	winver.exe	19
PID 2776 wrote to memory of 1200	2776	winver.exe	21
PID 2776 wrote to memory of 1368	2776	winver.exe	23
PID 2776 wrote to memory of 2696	2776	winver.exe	29

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1084

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1148

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe
  "C:\Users\Admin\AppData\Local\Temp\03759d636ca1c9cbf8be0f0f72136b0489919520e2a1db76ce390be049e1530b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - 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:2776

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1368

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 Information Discovery

T1082

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/1084-28-0x0000000002170000-0x0000000002176000-memory.dmp

Filesize
24KB

Download
memory/1084-9-0x0000000002170000-0x0000000002176000-memory.dmp

Filesize
24KB

Download
memory/1148-12-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/1148-26-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/1200-15-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1200-6-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1200-1-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1200-27-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1200-3-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1368-18-0x0000000002360000-0x0000000002366000-memory.dmp

Filesize
24KB

Download
memory/1368-29-0x0000000002360000-0x0000000002366000-memory.dmp

Filesize
24KB

Download
memory/2696-25-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2776-23-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2776-4-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2776-31-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download