tinba | a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 19:54

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General

Target

a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe
Size

110KB
MD5

e4abbcfc17d35a6fc284f9cfa2d23911
SHA1

dd38080f6ae9326dd343d17f2e447ed29b08f07b
SHA256

a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745
SHA512

0dfc9781fe7d62ff22c2558d70ad091beb2061e4a009330d8c9711fdef636690c30de0f895bebc1cc023014036e96c485e6f93ebc1a2cc2fef1e4bc37945e81b
SSDEEP

1536:eiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:eiyvRmDLs/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
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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\865C8FF0 = "C:\\Users\\Admin\\AppData\\Roaming\\865C8FF0\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2616-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe
1052	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1052	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 1052	2616	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	32
PID 2616 wrote to memory of 1052	2616	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	32
PID 2616 wrote to memory of 1052	2616	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	32
PID 2616 wrote to memory of 1052	2616	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	32
PID 2616 wrote to memory of 1052	2616	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	32
PID 1052 wrote to memory of 1220	1052	winver.exe	21
PID 1052 wrote to memory of 1100	1052	winver.exe	19
PID 1052 wrote to memory of 1172	1052	winver.exe	20
PID 1052 wrote to memory of 1220	1052	winver.exe	21
PID 1052 wrote to memory of 632	1052	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1100

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1220
- C:\Users\Admin\AppData\Local\Temp\a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe
  "C:\Users\Admin\AppData\Local\Temp\a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2616
- - 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:1052

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:632

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/632-23-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/632-27-0x00000000773F1000-0x00000000773F2000-memory.dmp

Filesize
4KB

Download
memory/632-26-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/1052-7-0x00000000775A0000-0x00000000775A1000-memory.dmp

Filesize
4KB

Download
memory/1052-31-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/1052-11-0x00000000773A0000-0x0000000077549000-memory.dmp

Filesize
1.7MB

Download
memory/1052-6-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/1052-9-0x000000007759F000-0x00000000775A1000-memory.dmp

Filesize
8KB

Download
memory/1052-8-0x000000007759F000-0x00000000775A0000-memory.dmp

Filesize
4KB

Download
memory/1100-25-0x00000000773F1000-0x00000000773F2000-memory.dmp

Filesize
4KB

Download
memory/1100-24-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1172-29-0x00000000773F1000-0x00000000773F2000-memory.dmp

Filesize
4KB

Download
memory/1172-19-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1172-28-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1172-34-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1220-10-0x00000000773F1000-0x00000000773F2000-memory.dmp

Filesize
4KB

Download
memory/1220-30-0x00000000024A0000-0x00000000024A6000-memory.dmp

Filesize
24KB

Download
memory/1220-2-0x00000000024F0000-0x00000000024F6000-memory.dmp

Filesize
24KB

Download
memory/1220-21-0x00000000024A0000-0x00000000024A6000-memory.dmp

Filesize
24KB

Download
memory/1220-3-0x00000000024F0000-0x00000000024F6000-memory.dmp

Filesize
24KB

Download
memory/1220-4-0x00000000024F0000-0x00000000024F6000-memory.dmp

Filesize
24KB

Download
memory/2616-13-0x0000000001E50000-0x0000000002850000-memory.dmp

Filesize
10.0MB

Download
memory/2616-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2616-5-0x0000000001E50000-0x0000000002850000-memory.dmp

Filesize
10.0MB

Download
memory/2616-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2616-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download