tinba | 79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 14:05

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General

Target

79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe
Size

98KB
MD5

d4c9488e65a5e884843880fdea67a670
SHA1

104d18445eddf0b00c60bf1f4322aa27ba9cf86e
SHA256

79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932
SHA512

36d6fc1397da766f031661a1812f389c0d48edd1e075aff086f40b576fd5f79908d5c490f2ef40156349a9dcf64432e74258da379dc8cfb4dd5ef5c17b98f718
SSDEEP

768:W+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:W+mFM2HXKZgi9Iksu+XM57ipeq9JF

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

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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\433D4C9E = "C:\\Users\\Admin\\AppData\\Roaming\\433D4C9E\\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	79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe
2340	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2340	winver.exe
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2340	2292	79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe	32
PID 2292 wrote to memory of 2340	2292	79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe	32
PID 2292 wrote to memory of 2340	2292	79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe	32
PID 2292 wrote to memory of 2340	2292	79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe	32
PID 2292 wrote to memory of 2340	2292	79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe	32
PID 2340 wrote to memory of 1204	2340	winver.exe	21
PID 2340 wrote to memory of 1108	2340	winver.exe	19
PID 2340 wrote to memory of 1168	2340	winver.exe	20
PID 2340 wrote to memory of 1204	2340	winver.exe	21
PID 2340 wrote to memory of 1672	2340	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⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1204
- C:\Users\Admin\AppData\Local\Temp\79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe
  "C:\Users\Admin\AppData\Local\Temp\79b3cf5944f4d0ebdf37e7f79a82cc07a9b1d80eaf50fda71a3adec0f3de6932N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2292
- - 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:2340

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1672

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/1108-24-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1108-25-0x0000000077861000-0x0000000077862000-memory.dmp

Filesize
4KB

Download
memory/1168-19-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1168-28-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1204-9-0x0000000077861000-0x0000000077862000-memory.dmp

Filesize
4KB

Download
memory/1204-3-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1204-1-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1204-21-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

Filesize
24KB

Download
memory/1204-29-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

Filesize
24KB

Download
memory/1672-23-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/1672-27-0x0000000077861000-0x0000000077862000-memory.dmp

Filesize
4KB

Download
memory/1672-26-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/2292-12-0x0000000001C80000-0x0000000002680000-memory.dmp

Filesize
10.0MB

Download
memory/2292-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2292-11-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2292-4-0x0000000001C80000-0x0000000002680000-memory.dmp

Filesize
10.0MB

Download
memory/2340-10-0x0000000077810000-0x00000000779B9000-memory.dmp

Filesize
1.7MB

Download
memory/2340-8-0x0000000077A0F000-0x0000000077A11000-memory.dmp

Filesize
8KB

Download
memory/2340-7-0x0000000077A0F000-0x0000000077A10000-memory.dmp

Filesize
4KB

Download
memory/2340-6-0x0000000077A10000-0x0000000077A11000-memory.dmp

Filesize
4KB

Download
memory/2340-5-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2340-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2340-35-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download