tinba | 3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780

Analysis

max time kernel
111s
max time network
98s
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 01:20

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General

Target

3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe
Size

88KB
MD5

d667971b686d2852439a03a71e631060
SHA1

77972fe58a9444061ad464c840cd231b634e1c94
SHA256

3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780
SHA512

cb16d5d59ac70dcb620a8262c9ba40fb89903afbff9f47d592d1fb6743eeb76947315c14dc6e68b5d8023fd07c799f020782147dc494b6674bafa10f3b0f92b0
SSDEEP

1536:25nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:25fvp12UFKcD/6jwqWsNI

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C3AD1259 = "C:\\Users\\Admin\\AppData\\Roaming\\C3AD1259\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3756	3212	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	3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3212	winver.exe
3212	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
3212	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 3212	1488	3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe	84
PID 1488 wrote to memory of 3212	1488	3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe	84
PID 1488 wrote to memory of 3212	1488	3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe	84
PID 1488 wrote to memory of 3212	1488	3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe	84
PID 3212 wrote to memory of 3440	3212	winver.exe	56
PID 3212 wrote to memory of 2628	3212	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2628

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe
  "C:\Users\Admin\AppData\Local\Temp\3b2293df670e80521cb66d5049cd1544270c62364d46c5d35bde6c0f1b59e780N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1488
- - 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:3212
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3212 -s 352
      4⤵
      Program crash
      PID:3756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3212 -ip 3212
1⤵
PID:4020

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/1488-9-0x0000000002050000-0x0000000002A50000-memory.dmp

Filesize
10.0MB

Download
memory/1488-3-0x0000000002050000-0x0000000002A50000-memory.dmp

Filesize
10.0MB

Download
memory/1488-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-0-0x0000000002030000-0x0000000002031000-memory.dmp

Filesize
4KB

Download
memory/2628-13-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/2628-15-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3212-5-0x00000000779F2000-0x00000000779F3000-memory.dmp

Filesize
4KB

Download
memory/3212-4-0x0000000001400000-0x0000000001406000-memory.dmp

Filesize
24KB

Download
memory/3212-7-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/3212-14-0x0000000001400000-0x0000000001406000-memory.dmp

Filesize
24KB

Download
memory/3440-1-0x00000000011B0000-0x00000000011B6000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x00000000011B0000-0x00000000011B6000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00007FFA2E90D000-0x00007FFA2E90E000-memory.dmp

Filesize
4KB

Download