tinba | ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860c

Analysis

max time kernel
111s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 04:46

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General

Target

ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe
Size

89KB
MD5

eee87f5004db09df762ac5983a5b1120
SHA1

64f123e3b14ed6b7be0e964e7693080501debbd2
SHA256

ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860c
SHA512

9a1ec95b8c6cda5b23ef68a7d79a40db20983ec94e7f792df59e9b3a9aa4dfae48b7b61f7e7101d135b95a5c24596cbb4ca64099e36236f68cf51fbcf9ce9fcb
SSDEEP

1536:k1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7K:g+4MJIkLZJNAQ9Jo9K

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\218251A5 = "C:\\Users\\Admin\\AppData\\Roaming\\218251A5\\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/2992-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3368	3504	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	ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3504	winver.exe
3504	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3504	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 3504	2992	ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe	84
PID 2992 wrote to memory of 3504	2992	ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe	84
PID 2992 wrote to memory of 3504	2992	ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe	84
PID 2992 wrote to memory of 3504	2992	ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe	84
PID 3504 wrote to memory of 3476	3504	winver.exe	56
PID 3504 wrote to memory of 2684	3504	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2684

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3476
- C:\Users\Admin\AppData\Local\Temp\ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe
  "C:\Users\Admin\AppData\Local\Temp\ba632978b2392cc5c796381a8c52aa75e64a7cff53627ff29bcd728a4bd3860cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2992
- - 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:3504
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 352
      4⤵
      Program crash
      PID:3368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3504 -ip 3504
1⤵
PID:1256

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/2684-14-0x00000000009B0000-0x00000000009B6000-memory.dmp

Filesize
24KB

Download
memory/2992-10-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Filesize
10.0MB

Download
memory/2992-4-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Filesize
10.0MB

Download
memory/2992-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2992-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2992-1-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/3476-3-0x0000000001230000-0x0000000001236000-memory.dmp

Filesize
24KB

Download
memory/3476-2-0x0000000001230000-0x0000000001236000-memory.dmp

Filesize
24KB

Download
memory/3476-6-0x00007FFACFE4D000-0x00007FFACFE4E000-memory.dmp

Filesize
4KB

Download
memory/3504-5-0x0000000077552000-0x0000000077553000-memory.dmp

Filesize
4KB

Download
memory/3504-7-0x00007FFACFDB0000-0x00007FFACFFA5000-memory.dmp

Filesize
2.0MB

Download
memory/3504-12-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/3504-15-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download