tinba | b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8

Analysis

max time kernel
113s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/09/2024, 01:21

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General

Target

b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe
Size

110KB
MD5

311379909b71293bcd76dcbfa328b4f0
SHA1

e2a301daba2d00e0ea487337326c3937c233963d
SHA256

b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8
SHA512

2496b6791d60ca7919504185ec6eee72fa936c58ea3379144529d18d3ee8950e04d1af968cef2b22c9249562ae64093665a48cd4f54ce95c69f3b8ca3f013221
SSDEEP

1536:JiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:JiyvRmDLs/ZrwWJjAqGcRJ2hg

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

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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EE935514 = "C:\\Users\\Admin\\AppData\\Roaming\\EE935514\\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/4948-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
440	1208	WerFault.exe	85

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	b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1208	winver.exe
1208	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1208	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 1208	4948	b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe	85
PID 4948 wrote to memory of 1208	4948	b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe	85
PID 4948 wrote to memory of 1208	4948	b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe	85
PID 4948 wrote to memory of 1208	4948	b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe	85
PID 1208 wrote to memory of 3380	1208	winver.exe	56
PID 1208 wrote to memory of 2952	1208	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2952

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3380
- C:\Users\Admin\AppData\Local\Temp\b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe
  "C:\Users\Admin\AppData\Local\Temp\b285f77259a0146163db13e21f0031eb74b2c57e780d471369c666de265d73f8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4948
- - 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:1208
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 356
      4⤵
      Program crash
      PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1208 -ip 1208
1⤵
PID:1184

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/1208-5-0x0000000077372000-0x0000000077373000-memory.dmp

Filesize
4KB

Download
memory/1208-14-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1208-11-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1208-7-0x00007FF839EF0000-0x00007FF83A0E5000-memory.dmp

Filesize
2.0MB

Download
memory/2952-13-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download
memory/3380-2-0x0000000000A40000-0x0000000000A46000-memory.dmp

Filesize
24KB

Download
memory/3380-6-0x00007FF839F8D000-0x00007FF839F8E000-memory.dmp

Filesize
4KB

Download
memory/3380-3-0x0000000000A40000-0x0000000000A46000-memory.dmp

Filesize
24KB

Download
memory/4948-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/4948-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4948-9-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/4948-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4948-1-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download