tinba | 5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765

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
20-01-2025 04:35

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General

Target

5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe
Size

110KB
MD5

a38edeccb67c1ecfbb848171c7a8ec10
SHA1

af337e6e5f7ec44d85c0cde2326e14780031a490
SHA256

5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765
SHA512

01461307df5c7970a24f540c95bd3d1696f95b2b01c06d16817ff1a75b339b6d3598477e290b144457e61171716b917807ca45e525dff5cf061ab228505903e1
SSDEEP

1536:JiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Ew:JiyvRmDLs/ZrwWJjAqGcRJ2hw

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\86F736DE = "C:\\Users\\Admin\\AppData\\Roaming\\86F736DE\\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/2748-0-0x0000000000400000-0x000000000041E000-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	5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe
2288	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2288	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2288	2748	5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe	32
PID 2748 wrote to memory of 2288	2748	5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe	32
PID 2748 wrote to memory of 2288	2748	5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe	32
PID 2748 wrote to memory of 2288	2748	5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe	32
PID 2748 wrote to memory of 2288	2748	5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe	32
PID 2288 wrote to memory of 1136	2288	winver.exe	20
PID 2288 wrote to memory of 1052	2288	winver.exe	17
PID 2288 wrote to memory of 1084	2288	winver.exe	19
PID 2288 wrote to memory of 1136	2288	winver.exe	20
PID 2288 wrote to memory of 764	2288	winver.exe	25

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

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1084

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1136
- C:\Users\Admin\AppData\Local\Temp\5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe
  "C:\Users\Admin\AppData\Local\Temp\5a3e3f8b66b307f9fcc4ef8e6a68d3fd8e416b3716cfd5f6c0893a33b5169765N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2748
- - 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:2288

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:764

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/764-31-0x0000000077271000-0x0000000077272000-memory.dmp

Filesize
4KB

Download
memory/764-24-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/764-30-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1052-26-0x0000000077271000-0x0000000077272000-memory.dmp

Filesize
4KB

Download
memory/1052-25-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1084-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1084-27-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1084-28-0x0000000077271000-0x0000000077272000-memory.dmp

Filesize
4KB

Download
memory/1084-35-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1136-10-0x0000000077271000-0x0000000077272000-memory.dmp

Filesize
4KB

Download
memory/1136-22-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1136-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/1136-3-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/1136-29-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1136-4-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/2288-11-0x0000000077220000-0x00000000773C9000-memory.dmp

Filesize
1.7MB

Download
memory/2288-6-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2288-7-0x0000000077420000-0x0000000077421000-memory.dmp

Filesize
4KB

Download
memory/2288-8-0x000000007741F000-0x0000000077420000-memory.dmp

Filesize
4KB

Download
memory/2288-9-0x000000007741F000-0x0000000077421000-memory.dmp

Filesize
8KB

Download
memory/2288-32-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2748-13-0x0000000001CE0000-0x00000000026E0000-memory.dmp

Filesize
10.0MB

Download
memory/2748-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2748-5-0x0000000001CE0000-0x00000000026E0000-memory.dmp

Filesize
10.0MB

Download
memory/2748-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2748-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download