tinba | 3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9ed

Analysis

max time kernel
118s
max time network
116s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 13:06

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General

Target

3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe
Size

98KB
MD5

c5844379faae859feb79a9f1d2122d10
SHA1

81e085ae598473ebcc6325cb2192f0d30d91c1bd
SHA256

3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9ed
SHA512

16a4c6d2f34008e951209169d550cf068dfa22850bfe221cb40dcdf4cf295fe02bf1a96c22c9515267b57b6b777cefc00fc3ddf49cba26aad162051bec84b476
SSDEEP

768:c+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:c+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
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\8BB8D634 = "C:\\Users\\Admin\\AppData\\Roaming\\8BB8D634\\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	3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe
2428	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2428	winver.exe
1244	Explorer.EXE
1244	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1244	Explorer.EXE
1244	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2428	2096	3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe	31
PID 2096 wrote to memory of 2428	2096	3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe	31
PID 2096 wrote to memory of 2428	2096	3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe	31
PID 2096 wrote to memory of 2428	2096	3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe	31
PID 2096 wrote to memory of 2428	2096	3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe	31
PID 2428 wrote to memory of 1244	2428	winver.exe	21
PID 2428 wrote to memory of 1112	2428	winver.exe	19
PID 2428 wrote to memory of 1196	2428	winver.exe	20
PID 2428 wrote to memory of 1244	2428	winver.exe	21
PID 2428 wrote to memory of 628	2428	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1112

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1196

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1244
- C:\Users\Admin\AppData\Local\Temp\3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe
  "C:\Users\Admin\AppData\Local\Temp\3b15c5f86a281373a69f45dfadc7b58b5af7e98785721424748677526726c9edN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2096
- - 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:2428

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:628

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/628-25-0x0000000001D60000-0x0000000001D66000-memory.dmp

Filesize
24KB

Download
memory/628-27-0x0000000001D60000-0x0000000001D66000-memory.dmp

Filesize
24KB

Download
memory/628-28-0x00000000773D1000-0x00000000773D2000-memory.dmp

Filesize
4KB

Download
memory/1112-30-0x00000000773D1000-0x00000000773D2000-memory.dmp

Filesize
4KB

Download
memory/1112-29-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/1196-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1196-31-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1244-22-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1244-3-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download
memory/1244-26-0x0000000002510000-0x0000000002516000-memory.dmp

Filesize
24KB

Download
memory/1244-9-0x00000000773D1000-0x00000000773D2000-memory.dmp

Filesize
4KB

Download
memory/1244-1-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download
memory/1244-2-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download
memory/2096-4-0x0000000001CD0000-0x00000000026D0000-memory.dmp

Filesize
10.0MB

Download
memory/2096-12-0x0000000001CD0000-0x00000000026D0000-memory.dmp

Filesize
10.0MB

Download
memory/2096-11-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2096-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2428-5-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2428-10-0x0000000077380000-0x0000000077529000-memory.dmp

Filesize
1.7MB

Download
memory/2428-6-0x0000000077580000-0x0000000077581000-memory.dmp

Filesize
4KB

Download
memory/2428-7-0x000000007757F000-0x0000000077580000-memory.dmp

Filesize
4KB

Download
memory/2428-8-0x000000007757F000-0x0000000077581000-memory.dmp

Filesize
8KB

Download
memory/2428-32-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download