tinba | 3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 16:37

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General

Target

3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe
Size

160KB
MD5

ff9b9dec68136843b09bab8dfa81ecda
SHA1

3ae1761a09bd856a499cf35ca735251e8e8c09d8
SHA256

3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e
SHA512

3f04c3bf7e0d953fc2595b225f8021e8bb15a8bbf9575ecb7687d2435035b3c54c66a461378ecfe9c0d37894842a53a37ef6a102353b7515cf0ac2b87ad34119
SSDEEP

1536:5EY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:yY+4MiIkLZJNAQ9J6vu

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\111EFD88 = "C:\\Users\\Admin\\AppData\\Roaming\\111EFD88\\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/2160-0-0x0000000000400000-0x0000000000428000-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	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe
2792	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2792	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2792	2160	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	31
PID 2160 wrote to memory of 2792	2160	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	31
PID 2160 wrote to memory of 2792	2160	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	31
PID 2160 wrote to memory of 2792	2160	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	31
PID 2160 wrote to memory of 2792	2160	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	31
PID 2792 wrote to memory of 1236	2792	winver.exe	21
PID 2792 wrote to memory of 1116	2792	winver.exe	19
PID 2792 wrote to memory of 1168	2792	winver.exe	20
PID 2792 wrote to memory of 1236	2792	winver.exe	21
PID 2792 wrote to memory of 1636	2792	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1168

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1236
- C:\Users\Admin\AppData\Local\Temp\3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe
  "C:\Users\Admin\AppData\Local\Temp\3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2160
- - 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:2792

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1636

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/1116-26-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1116-27-0x0000000076FE1000-0x0000000076FE2000-memory.dmp

Filesize
4KB

Download
memory/1168-28-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1168-19-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1236-10-0x0000000076FE1000-0x0000000076FE2000-memory.dmp

Filesize
4KB

Download
memory/1236-21-0x0000000002480000-0x0000000002486000-memory.dmp

Filesize
24KB

Download
memory/1236-25-0x0000000002480000-0x0000000002486000-memory.dmp

Filesize
24KB

Download
memory/1236-3-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1236-2-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1236-4-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1636-30-0x0000000001E00000-0x0000000001E06000-memory.dmp

Filesize
24KB

Download
memory/1636-31-0x0000000076FE1000-0x0000000076FE2000-memory.dmp

Filesize
4KB

Download
memory/1636-24-0x0000000001E00000-0x0000000001E06000-memory.dmp

Filesize
24KB

Download
memory/2160-13-0x0000000001D60000-0x0000000002760000-memory.dmp

Filesize
10.0MB

Download
memory/2160-5-0x0000000001D60000-0x0000000002760000-memory.dmp

Filesize
10.0MB

Download
memory/2160-12-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2160-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2160-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2792-11-0x0000000076F90000-0x0000000077139000-memory.dmp

Filesize
1.7MB

Download
memory/2792-6-0x00000000000D0000-0x00000000000D6000-memory.dmp

Filesize
24KB

Download
memory/2792-7-0x0000000077190000-0x0000000077191000-memory.dmp

Filesize
4KB

Download
memory/2792-8-0x000000007718F000-0x0000000077190000-memory.dmp

Filesize
4KB

Download
memory/2792-9-0x000000007718F000-0x0000000077191000-memory.dmp

Filesize
8KB

Download
memory/2792-29-0x00000000000D0000-0x00000000000D6000-memory.dmp

Filesize
24KB

Download