tinba | 3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41b

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
02-11-2024 16:50

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General

Target

3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe
Size

59KB
MD5

ab67e00a84dfd14838487a54bd3a7390
SHA1

1977ee27040b0995beb6ed813659daec8531c2bd
SHA256

3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41b
SHA512

1e8e18af7da3ede91f491a2980dc98a4d2f761be832e1f0a1976acc059fc2bd8c95583f609e4cf0d33e033ca2e90180172d9694900456fa1b9ea689ee51d0a3d
SSDEEP

768:4+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J1:4+mFM2HXKZgiFP7xIksu+XM5O9J1

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\9C787E3C = "C:\\Users\\Admin\\AppData\\Roaming\\9C787E3C\\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	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe
3064	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3064	winver.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 3064	2344	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	31
PID 2344 wrote to memory of 3064	2344	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	31
PID 2344 wrote to memory of 3064	2344	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	31
PID 2344 wrote to memory of 3064	2344	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	31
PID 2344 wrote to memory of 3064	2344	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	31
PID 3064 wrote to memory of 1172	3064	winver.exe	21
PID 3064 wrote to memory of 1052	3064	winver.exe	18
PID 3064 wrote to memory of 1128	3064	winver.exe	20
PID 3064 wrote to memory of 1172	3064	winver.exe	21

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1052

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1128

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1172
- C:\Users\Admin\AppData\Local\Temp\3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe
  "C:\Users\Admin\AppData\Local\Temp\3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2344
- - 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:3064

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/1052-25-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1128-21-0x0000000077561000-0x0000000077562000-memory.dmp

Filesize
4KB

Download
memory/1128-18-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1128-23-0x0000000077561000-0x0000000077562000-memory.dmp

Filesize
4KB

Download
memory/1128-22-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1172-2-0x00000000025D0000-0x00000000025D6000-memory.dmp

Filesize
24KB

Download
memory/1172-1-0x00000000025D0000-0x00000000025D6000-memory.dmp

Filesize
24KB

Download
memory/1172-9-0x0000000077561000-0x0000000077562000-memory.dmp

Filesize
4KB

Download
memory/1172-24-0x0000000002A30000-0x0000000002A36000-memory.dmp

Filesize
24KB

Download
memory/1172-3-0x00000000025D0000-0x00000000025D6000-memory.dmp

Filesize
24KB

Download
memory/1172-20-0x0000000002A30000-0x0000000002A36000-memory.dmp

Filesize
24KB

Download
memory/2344-4-0x0000000001DA0000-0x00000000027A0000-memory.dmp

Filesize
10.0MB

Download
memory/2344-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2344-12-0x0000000001DA0000-0x00000000027A0000-memory.dmp

Filesize
10.0MB

Download
memory/2344-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/3064-7-0x000000007770F000-0x0000000077710000-memory.dmp

Filesize
4KB

Download
memory/3064-26-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/3064-8-0x000000007770F000-0x0000000077711000-memory.dmp

Filesize
8KB

Download
memory/3064-10-0x0000000077510000-0x00000000776B9000-memory.dmp

Filesize
1.7MB

Download
memory/3064-5-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/3064-6-0x0000000077710000-0x0000000077711000-memory.dmp

Filesize
4KB

Download