tinba | 778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22

Analysis

max time kernel
109s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 11:02

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General

Target

778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe
Size

110KB
MD5

37fb2d0e1c9580ada94871d2cae65b20
SHA1

f53012ac97759026bc0640fb4046b4ef6d973cc3
SHA256

778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22
SHA512

cc2741ce97a2a54c5459826ded5c6ea6f2197be89bb69513dd4b5e47aad2e510c816e045dfa2943190982047f7ad1fe128642825b1c48492fa5d015ca900244c
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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F47F8F7B = "C:\\Users\\Admin\\AppData\\Roaming\\F47F8F7B\\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/2904-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3932	4380	WerFault.exe	83

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	778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4380	winver.exe
4380	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3512	Explorer.EXE
Token: SeCreatePagefilePrivilege	3512	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4380	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 4380	2904	778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe	83
PID 2904 wrote to memory of 4380	2904	778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe	83
PID 2904 wrote to memory of 4380	2904	778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe	83
PID 2904 wrote to memory of 4380	2904	778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe	83
PID 4380 wrote to memory of 3512	4380	winver.exe	56
PID 4380 wrote to memory of 2652	4380	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:3512
- C:\Users\Admin\AppData\Local\Temp\778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe
  "C:\Users\Admin\AppData\Local\Temp\778448d02265d1b7abbfbea05f871d5212799f168bbdcf5e998846bde991bc22N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2904
- - 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:4380
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 352
      4⤵
      Program crash
      PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4380 -ip 4380
1⤵
PID:1388

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/2652-13-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2904-9-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/2904-4-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/2904-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/3512-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3512-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3512-6-0x00007FFC5488D000-0x00007FFC5488E000-memory.dmp

Filesize
4KB

Download
memory/4380-5-0x0000000076F72000-0x0000000076F73000-memory.dmp

Filesize
4KB

Download
memory/4380-7-0x00007FFC547F0000-0x00007FFC549E5000-memory.dmp

Filesize
2.0MB

Download
memory/4380-11-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download
memory/4380-14-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download