tinba | ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b

Resubmissions

05-12-2024 08:21

241205-j8zghawmft 10

Analysis

max time kernel
106s
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
05-12-2024 08:21

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General

Target

ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe
Size

89KB
MD5

bb1fc05bfb1d216f1a59ad5d1f1fc332
SHA1

ceab0163be9607d3bcea1470e634108a821b9d16
SHA256

ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b
SHA512

698ee34b1275bc200c0cae5a5a1e7be5fcb36d8914ac6b0866d5234db8f90d194dda6f7cf0f737ed4b55911040712db93f1e61dce4790f5ca453be4230bb64ac
SSDEEP

1536:j1+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7u:J+4MJIkLZJNAQ9Jo9u

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\908A2A04 = "C:\\Users\\Admin\\AppData\\Roaming\\908A2A04\\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/2940-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4636	1672	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	ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1672	winver.exe
1672	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1672	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 1672	2940	ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe	83
PID 2940 wrote to memory of 1672	2940	ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe	83
PID 2940 wrote to memory of 1672	2940	ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe	83
PID 2940 wrote to memory of 1672	2940	ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe	83
PID 1672 wrote to memory of 3448	1672	winver.exe	56
PID 1672 wrote to memory of 2664	1672	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2664

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3448
- C:\Users\Admin\AppData\Local\Temp\ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe
  "C:\Users\Admin\AppData\Local\Temp\ea17fa27703fdad33468be39c4417356575c381d3c7236d37186f69005d3aa7b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2940
- - 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:1672
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1672 -s 352
      4⤵
      Program crash
      PID:4636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1672 -ip 1672
1⤵
PID:3324

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/1672-5-0x0000000077932000-0x0000000077933000-memory.dmp

Filesize
4KB

Download
memory/1672-15-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/1672-12-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/1672-7-0x00007FFF33470000-0x00007FFF33665000-memory.dmp

Filesize
2.0MB

Download
memory/2664-14-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/2940-10-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/2940-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/2940-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2940-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2940-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/3448-6-0x00007FFF3350D000-0x00007FFF3350E000-memory.dmp

Filesize
4KB

Download
memory/3448-2-0x00000000029B0000-0x00000000029B6000-memory.dmp

Filesize
24KB

Download
memory/3448-3-0x00000000029B0000-0x00000000029B6000-memory.dmp

Filesize
24KB

Download