tinba | 88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 10:33

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General

Target

88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe
Size

88KB
MD5

419453a9cd0b10329bcf544230508924
SHA1

91b4137c18c06632a99b5119bd289eabffe5dd26
SHA256

88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37
SHA512

e831cea1742b332f5b13b1840c03025ffe8bca86ec3acd4bdc74f54a11d1e953f9c3c458d58474eaf93e30638090b7337126ec3e583feeb41f49addfca2e68de
SSDEEP

1536:vz44CpRkr9DXhHf3aOd/56RrkQqjh+rmKVsNI:vzvokZR/KM/ysjwqWsNI

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\DB47620A = "C:\\Users\\Admin\\AppData\\Roaming\\DB47620A\\bin.exe"	winver.exe

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	88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe
2036	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2036	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 2036	1892	88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe	32
PID 1892 wrote to memory of 2036	1892	88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe	32
PID 1892 wrote to memory of 2036	1892	88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe	32
PID 1892 wrote to memory of 2036	1892	88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe	32
PID 1892 wrote to memory of 2036	1892	88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe	32
PID 2036 wrote to memory of 1212	2036	winver.exe	21
PID 2036 wrote to memory of 1108	2036	winver.exe	19
PID 2036 wrote to memory of 1172	2036	winver.exe	20
PID 2036 wrote to memory of 1212	2036	winver.exe	21
PID 2036 wrote to memory of 1604	2036	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1108

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212
- C:\Users\Admin\AppData\Local\Temp\88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe
  "C:\Users\Admin\AppData\Local\Temp\88b28712851de70e68340527f01f8b108160b3ecb411a2fd232e15d2c9e19b37.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1892
- - 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:2036

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1604

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/1108-25-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1108-26-0x0000000077011000-0x0000000077012000-memory.dmp

Filesize
4KB

Download
memory/1172-27-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1172-19-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1212-1-0x0000000002E30000-0x0000000002E36000-memory.dmp

Filesize
24KB

Download
memory/1212-2-0x0000000002E30000-0x0000000002E36000-memory.dmp

Filesize
24KB

Download
memory/1212-9-0x0000000077011000-0x0000000077012000-memory.dmp

Filesize
4KB

Download
memory/1212-3-0x0000000002E30000-0x0000000002E36000-memory.dmp

Filesize
24KB

Download
memory/1212-28-0x0000000002BB0000-0x0000000002BB6000-memory.dmp

Filesize
24KB

Download
memory/1212-21-0x0000000002BB0000-0x0000000002BB6000-memory.dmp

Filesize
24KB

Download
memory/1604-29-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1604-30-0x0000000077011000-0x0000000077012000-memory.dmp

Filesize
4KB

Download
memory/1604-24-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1892-4-0x0000000001D70000-0x0000000002770000-memory.dmp

Filesize
10.0MB

Download
memory/1892-12-0x0000000001D70000-0x0000000002770000-memory.dmp

Filesize
10.0MB

Download
memory/1892-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1892-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2036-6-0x00000000771C0000-0x00000000771C1000-memory.dmp

Filesize
4KB

Download
memory/2036-5-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download
memory/2036-7-0x00000000771BF000-0x00000000771C0000-memory.dmp

Filesize
4KB

Download
memory/2036-8-0x00000000771BF000-0x00000000771C1000-memory.dmp

Filesize
8KB

Download
memory/2036-10-0x0000000076FC0000-0x0000000077169000-memory.dmp

Filesize
1.7MB

Download
memory/2036-31-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download