tinba | ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 21:29

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General

Target

ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe
Size

45KB
MD5

a5cdbd901796d8965cc7d0385f3819a0
SHA1

8c1e4f73d214cbb64c6d174e98752ae84e55bde0
SHA256

ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00
SHA512

f4250dde058ed7e1dcc09c2f7077ff5acd5198d2c64e3f5472668cd71f2217d944356be3d3ad98ca5d5930a739400a12059179a4122dff03977a855483bb6709
SSDEEP

768:PhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2X:ZsWE9N5dFu53dsniQaB/xZ14n7zIF+qD

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\2CE3FD8B = "C:\\Users\\Admin\\AppData\\Roaming\\2CE3FD8B\\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/2528-0-0x0000000000400000-0x000000000041D000-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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe
2336	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2336	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2336	2528	ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe	30
PID 2528 wrote to memory of 2336	2528	ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe	30
PID 2528 wrote to memory of 2336	2528	ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe	30
PID 2528 wrote to memory of 2336	2528	ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe	30
PID 2528 wrote to memory of 2336	2528	ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe	30
PID 2336 wrote to memory of 1396	2336	winver.exe	20
PID 2336 wrote to memory of 1296	2336	winver.exe	18
PID 2336 wrote to memory of 1360	2336	winver.exe	19
PID 2336 wrote to memory of 1396	2336	winver.exe	20
PID 2336 wrote to memory of 1608	2336	winver.exe	22

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1296

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1360

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1396
- C:\Users\Admin\AppData\Local\Temp\ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe
  "C:\Users\Admin\AppData\Local\Temp\ac7cecb553b11dd599bd681120c48d200f0a67062db075764989a69d32a9de00N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2528
- - 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:2336

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1608

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/1296-25-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1296-26-0x00000000779F1000-0x00000000779F2000-memory.dmp

Filesize
4KB

Download
memory/1360-20-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1360-31-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1396-22-0x00000000025F0000-0x00000000025F6000-memory.dmp

Filesize
24KB

Download
memory/1396-3-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

Filesize
24KB

Download
memory/1396-2-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

Filesize
24KB

Download
memory/1396-4-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

Filesize
24KB

Download
memory/1396-10-0x00000000779F1000-0x00000000779F2000-memory.dmp

Filesize
4KB

Download
memory/1396-28-0x00000000025F0000-0x00000000025F6000-memory.dmp

Filesize
24KB

Download
memory/1608-30-0x00000000779F1000-0x00000000779F2000-memory.dmp

Filesize
4KB

Download
memory/1608-29-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/1608-24-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/2336-9-0x0000000077B9F000-0x0000000077BA1000-memory.dmp

Filesize
8KB

Download
memory/2336-7-0x0000000077BA0000-0x0000000077BA1000-memory.dmp

Filesize
4KB

Download
memory/2336-27-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/2336-8-0x0000000077B9F000-0x0000000077BA0000-memory.dmp

Filesize
4KB

Download
memory/2336-6-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/2336-11-0x00000000779A0000-0x0000000077B49000-memory.dmp

Filesize
1.7MB

Download
memory/2528-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2528-13-0x0000000001D70000-0x0000000002770000-memory.dmp

Filesize
10.0MB

Download
memory/2528-5-0x0000000001D70000-0x0000000002770000-memory.dmp

Filesize
10.0MB

Download
memory/2528-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2528-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download