tinba | 93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766

Analysis

max time kernel
120s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 08:42

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General

Target

93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe
Size

89KB
MD5

962f1fd13b28a0c6f334696148759350
SHA1

f6a17ac6a88ae3339f1509e422ea5f5d18909469
SHA256

93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766
SHA512

48c4f52e028c3a0be8a9033e0ada92fd76446faa73daa26b363901f8295866ef3f4e905474a011b4b1b50636af7ea7bbe7d85a248725301c1ef8f07730740d83
SSDEEP

1536:p1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:j+4MJIkLZJNAQ9Jo9e

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
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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F71A864A = "C:\\Users\\Admin\\AppData\\Roaming\\F71A864A\\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/3168-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4256	4548	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	93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4548	winver.exe
4548	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4548	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 4548	3168	93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe	84
PID 3168 wrote to memory of 4548	3168	93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe	84
PID 3168 wrote to memory of 4548	3168	93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe	84
PID 3168 wrote to memory of 4548	3168	93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe	84
PID 4548 wrote to memory of 3528	4548	winver.exe	56
PID 4548 wrote to memory of 2820	4548	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2820

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3528
- C:\Users\Admin\AppData\Local\Temp\93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe
  "C:\Users\Admin\AppData\Local\Temp\93908e28fd00887ef6df4692c8f186da669816a5388dc076e0d3af5ed9e90766N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3168
- - 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:4548
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 352
      4⤵
      Program crash
      PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4548 -ip 4548
1⤵
PID:2376

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/2820-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2820-13-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3168-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3168-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/3168-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3168-4-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/3168-9-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/3528-2-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3528-6-0x00007FFDBBBED000-0x00007FFDBBBEE000-memory.dmp

Filesize
4KB

Download
memory/3528-3-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4548-7-0x00007FFDBBB50000-0x00007FFDBBD45000-memory.dmp

Filesize
2.0MB

Download
memory/4548-5-0x0000000077BA2000-0x0000000077BA3000-memory.dmp

Filesize
4KB

Download
memory/4548-11-0x00000000013A0000-0x00000000013A6000-memory.dmp

Filesize
24KB

Download
memory/4548-14-0x00000000013A0000-0x00000000013A6000-memory.dmp

Filesize
24KB

Download