tinba | 4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0

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
17-01-2025 13:56

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General

Target

4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe
Size

110KB
MD5

13d48ca83bc73f0e2084f7fbc0e0f660
SHA1

f0019ff11e0cc13b32046cc82b6312dfa8d0c277
SHA256

4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0
SHA512

bf870c2ff46974c540ffccfa1973413d4768dac47763a684cc939efb68cb6d0c613be1890233d2dde1f985d70288dc0c5a6fab422ec51fe1e2b5c950a7a13b55
SSDEEP

1536:9iLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:9iyvRmDLs/ZrwWJjAqGcRJ2hA

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\2EA89F77 = "C:\\Users\\Admin\\AppData\\Roaming\\2EA89F77\\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/2632-0-0x0000000000400000-0x000000000041E000-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	4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe
2752	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2752	winver.exe
1280	Explorer.EXE
1280	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1280	Explorer.EXE
1280	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2632 wrote to memory of 2752	2632	4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe	31
PID 2632 wrote to memory of 2752	2632	4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe	31
PID 2632 wrote to memory of 2752	2632	4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe	31
PID 2632 wrote to memory of 2752	2632	4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe	31
PID 2632 wrote to memory of 2752	2632	4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe	31
PID 2752 wrote to memory of 1280	2752	winver.exe	21
PID 2752 wrote to memory of 1128	2752	winver.exe	19
PID 2752 wrote to memory of 1236	2752	winver.exe	20
PID 2752 wrote to memory of 1280	2752	winver.exe	21
PID 2752 wrote to memory of 840	2752	winver.exe	25

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

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1236

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1280
- C:\Users\Admin\AppData\Local\Temp\4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe
  "C:\Users\Admin\AppData\Local\Temp\4858b837aa37a7fa8cf2f71e9f5d619c18c5608b44156c98af192187c45f89e0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - 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:2752

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:840

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/840-25-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/840-23-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/840-26-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1128-28-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1128-27-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/1236-29-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

Filesize
24KB

Download
memory/1236-19-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

Filesize
24KB

Download
memory/1280-2-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/1280-3-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/1280-4-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/1280-24-0x0000000002980000-0x0000000002986000-memory.dmp

Filesize
24KB

Download
memory/1280-10-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1280-21-0x0000000002980000-0x0000000002986000-memory.dmp

Filesize
24KB

Download
memory/2632-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2632-13-0x0000000001C90000-0x0000000002690000-memory.dmp

Filesize
10.0MB

Download
memory/2632-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2632-5-0x0000000001C90000-0x0000000002690000-memory.dmp

Filesize
10.0MB

Download
memory/2632-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2752-11-0x00000000775F0000-0x0000000077799000-memory.dmp

Filesize
1.7MB

Download
memory/2752-9-0x00000000777EF000-0x00000000777F1000-memory.dmp

Filesize
8KB

Download
memory/2752-8-0x00000000777EF000-0x00000000777F0000-memory.dmp

Filesize
4KB

Download
memory/2752-7-0x00000000777F0000-0x00000000777F1000-memory.dmp

Filesize
4KB

Download
memory/2752-6-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/2752-30-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download