tinba | b123d0401e44a07fe8bab5f724746be888be93f81fb7304f075d35f2a20fd1f2

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 06:15

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General

Target

2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe
Size

89KB
MD5

f3264cbd54dee6100118b22c09a3251c
SHA1

4c96e95d86e72aeebcb61ceccdd22e9c9e898c33
SHA256

2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744
SHA512

8a682cdf585921238ccefe8c2e5a4d7c346962ff842e132eb8ed8fc675c25473705064a49a7b025fd61a44030f27d80814858f3b5c80605e34665bee8efb1bf3
SSDEEP

1536:xr+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:1+4MJIkLZJNAQ9Jo9e

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2072-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\76917A4D = "C:\\Users\\Admin\\AppData\\Roaming\\76917A4D\\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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe
1964	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1964	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 2072 wrote to memory of 1964	2072	2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe	31
PID 2072 wrote to memory of 1964	2072	2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe	31
PID 2072 wrote to memory of 1964	2072	2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe	31
PID 2072 wrote to memory of 1964	2072	2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe	31
PID 2072 wrote to memory of 1964	2072	2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe	31
PID 1964 wrote to memory of 1204	1964	winver.exe	21
PID 1964 wrote to memory of 1112	1964	winver.exe	19
PID 1964 wrote to memory of 1172	1964	winver.exe	20
PID 1964 wrote to memory of 1204	1964	winver.exe	21
PID 1964 wrote to memory of 1316	1964	winver.exe	23

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

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

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\2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe
  "C:\Users\Admin\AppData\Local\Temp\2547f2839e8bed94cb840e417e7d47670f1665ee6448b2ed98a63f5c47e85744.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2072
- - 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:1964

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1316

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/1112-26-0x00000000771D1000-0x00000000771D2000-memory.dmp

Filesize
4KB

Download
memory/1112-25-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1172-19-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1172-24-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000002720000-0x0000000002726000-memory.dmp

Filesize
24KB

Download
memory/1204-10-0x00000000771D1000-0x00000000771D2000-memory.dmp

Filesize
4KB

Download
memory/1204-27-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1204-4-0x0000000002720000-0x0000000002726000-memory.dmp

Filesize
24KB

Download
memory/1204-3-0x0000000002720000-0x0000000002726000-memory.dmp

Filesize
24KB

Download
memory/1204-21-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1316-29-0x00000000771D1000-0x00000000771D2000-memory.dmp

Filesize
4KB

Download
memory/1316-23-0x0000000001BE0000-0x0000000001BE6000-memory.dmp

Filesize
24KB

Download
memory/1316-28-0x0000000001BE0000-0x0000000001BE6000-memory.dmp

Filesize
24KB

Download
memory/1964-11-0x0000000077180000-0x0000000077329000-memory.dmp

Filesize
1.7MB

Download
memory/1964-6-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/1964-7-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/1964-8-0x000000007737F000-0x0000000077380000-memory.dmp

Filesize
4KB

Download
memory/1964-9-0x000000007737F000-0x0000000077381000-memory.dmp

Filesize
8KB

Download
memory/1964-30-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/2072-13-0x0000000001EE0000-0x00000000028E0000-memory.dmp

Filesize
10.0MB

Download
memory/2072-12-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2072-5-0x0000000001EE0000-0x00000000028E0000-memory.dmp

Filesize
10.0MB

Download
memory/2072-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2072-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download