tinba | 3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51

Analysis

max time kernel
110s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 10:33

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General

Target

3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe
Size

45KB
MD5

19ac5bee68b8853474ad58ff9f09c4fc
SHA1

cc96f3b2d31ad9fde574321932006ea8052e434e
SHA256

3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51
SHA512

0407b5bbe49ecc9b8b7502c56e4ed71d1b20cb33f7293e7d92fc5246b5abffd86f25049eee5e7735f91fa1684dd8db285e4dafccfb018511f9dada69ccfd5321
SSDEEP

768:yhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2F:+sWE9N5dFu53dsniQaB/xZ14n7zIF+qJ

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3E3C7A1B = "C:\\Users\\Admin\\AppData\\Roaming\\3E3C7A1B\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/392-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4760	216	WerFault.exe	84

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	3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
216	winver.exe
216	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
216	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 216	392	3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe	84
PID 392 wrote to memory of 216	392	3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe	84
PID 392 wrote to memory of 216	392	3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe	84
PID 392 wrote to memory of 216	392	3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe	84
PID 216 wrote to memory of 3440	216	winver.exe	56
PID 216 wrote to memory of 2652	216	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe
  "C:\Users\Admin\AppData\Local\Temp\3b16a124a7a6d5dac1db8c87e731c32cf101edcfc36db6358f534aad4a44fc51.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:392
- - 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:216
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 352
      4⤵
      Program crash
      PID:4760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 216 -ip 216
1⤵
PID:2408

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/216-5-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

Filesize
24KB

Download
memory/216-7-0x00007FFC78C70000-0x00007FFC78E65000-memory.dmp

Filesize
2.0MB

Download
memory/216-14-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

Filesize
24KB

Download
memory/392-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/392-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/392-4-0x00000000022F0000-0x0000000002CF0000-memory.dmp

Filesize
10.0MB

Download
memory/392-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/392-9-0x00000000022F0000-0x0000000002CF0000-memory.dmp

Filesize
10.0MB

Download
memory/2652-13-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3440-3-0x00000000013F0000-0x00000000013F6000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x00000000013F0000-0x00000000013F6000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00007FFC78D0D000-0x00007FFC78D0E000-memory.dmp

Filesize
4KB

Download