tinba | 26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4

Analysis

max time kernel
113s
max time network
94s
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 01:09

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General

Target

26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe
Size

160KB
MD5

a56a3a276b1bc91a0f189421aa3f6690
SHA1

4aae692053a580dbaadddf9038c1263a01500c9f
SHA256

26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4
SHA512

41bfdb03caff81fb3ad7e974a988830a99bc5da40ce8fe4e0b1b4662a16980e29638e4381c60b1016c494a8d812daedf280668ff4e0569004fda5620162ff336
SSDEEP

1536:pEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:iY+4MiIkLZJNAQ9J6v

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\D52E311E = "C:\\Users\\Admin\\AppData\\Roaming\\D52E311E\\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/4464-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5064	4496	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	26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4496	winver.exe
4496	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
4496	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 4496	4464	26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe	85
PID 4464 wrote to memory of 4496	4464	26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe	85
PID 4464 wrote to memory of 4496	4464	26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe	85
PID 4464 wrote to memory of 4496	4464	26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe	85
PID 4496 wrote to memory of 3380	4496	winver.exe	56
PID 4496 wrote to memory of 2952	4496	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\26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe
  "C:\Users\Admin\AppData\Local\Temp\26e1b1bdf59a3dc3ff7d5b955fa9438b5b81332228673ffdfea1feb614dd65b4N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4464
- - 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:4496
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 356
      4⤵
      Program crash
      PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4496 -ip 4496
1⤵
PID:824

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/2952-14-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download
memory/3380-7-0x00007FF839F8D000-0x00007FF839F8E000-memory.dmp

Filesize
4KB

Download
memory/3380-3-0x0000000000CB0000-0x0000000000CB6000-memory.dmp

Filesize
24KB

Download
memory/3380-2-0x0000000000CB0000-0x0000000000CB6000-memory.dmp

Filesize
24KB

Download
memory/4464-9-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4464-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/4464-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4464-10-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/4464-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/4496-6-0x0000000077372000-0x0000000077373000-memory.dmp

Filesize
4KB

Download
memory/4496-5-0x0000000000C40000-0x0000000000C46000-memory.dmp

Filesize
24KB

Download
memory/4496-8-0x00007FF839EF0000-0x00007FF83A0E5000-memory.dmp

Filesize
2.0MB

Download
memory/4496-15-0x0000000000C40000-0x0000000000C46000-memory.dmp

Filesize
24KB

Download