tinba | 55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f

Analysis

max time kernel
109s
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
01-12-2024 11:36

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General

Target

55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe
Size

88KB
MD5

59d5aa5cc890f9da4d49e27aa883295f
SHA1

e1ab83c118c391d779654a9619d1125f94a0c08b
SHA256

55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f
SHA512

2c99cbaa9ca011bd8d0b70d22c2dc311c4a2faef439890e88fc06b833f60ddfadb039fc677e34d2f8b71270e2b34ba38200adad6c89e79681d8158ee469bed4e
SSDEEP

1536:+5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:+5fvp12UFKcD/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\998EF9DB = "C:\\Users\\Admin\\AppData\\Roaming\\998EF9DB\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2916	3552	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	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3552	winver.exe
3552	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3552	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 3552	3336	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	84
PID 3336 wrote to memory of 3552	3336	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	84
PID 3336 wrote to memory of 3552	3336	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	84
PID 3336 wrote to memory of 3552	3336	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	84
PID 3552 wrote to memory of 3376	3552	winver.exe	56
PID 3552 wrote to memory of 2704	3552	winver.exe	47

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2704

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3376
- C:\Users\Admin\AppData\Local\Temp\55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe
  "C:\Users\Admin\AppData\Local\Temp\55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3336
- - 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:3552
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 352
      4⤵
      Program crash
      PID:2916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3552 -ip 3552
1⤵
PID:688

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

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Downloads

memory/2704-12-0x0000000000C40000-0x0000000000C46000-memory.dmp

Filesize
24KB

Download
memory/3336-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/3336-3-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/3336-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3336-8-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/3376-2-0x0000000000950000-0x0000000000956000-memory.dmp

Filesize
24KB

Download
memory/3376-1-0x0000000000950000-0x0000000000956000-memory.dmp

Filesize
24KB

Download
memory/3376-5-0x00007FFD858ED000-0x00007FFD858EE000-memory.dmp

Filesize
4KB

Download
memory/3552-4-0x00000000771F2000-0x00000000771F3000-memory.dmp

Filesize
4KB

Download
memory/3552-6-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/3552-10-0x0000000002C10000-0x0000000002C16000-memory.dmp

Filesize
24KB

Download
memory/3552-13-0x0000000002C10000-0x0000000002C16000-memory.dmp

Filesize
24KB

Download