tinba | 21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9c

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
05-02-2025 02:33

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General

Target

21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe
Size

90KB
MD5

6153661c20757de6b195dfd87d5f65c0
SHA1

e7ff710f7aa3bc8434fb57d0c8b2398a4a243f26
SHA256

21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9c
SHA512

8367ee0ada94411673b6f121d30cee39f6c5fa7a610262252cc88b0e15111bea1400067f1271d184a918a859e836971fe6852f7c78e2f515b14ca4b442c1e234
SSDEEP

1536:Fz44CpRkr9DXhHf3aOd/56RrZ7qjh3rmKPNY+o25:FzvokZR/KM/y8jZqMNY/25

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\1E08B5E0 = "C:\\Users\\Admin\\AppData\\Roaming\\1E08B5E0\\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	21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe
2436	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2436	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2436	2520	21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe	31
PID 2520 wrote to memory of 2436	2520	21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe	31
PID 2520 wrote to memory of 2436	2520	21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe	31
PID 2520 wrote to memory of 2436	2520	21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe	31
PID 2520 wrote to memory of 2436	2520	21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe	31
PID 2436 wrote to memory of 1192	2436	winver.exe	21
PID 2436 wrote to memory of 1112	2436	winver.exe	19
PID 2436 wrote to memory of 1156	2436	winver.exe	20
PID 2436 wrote to memory of 1192	2436	winver.exe	21
PID 2436 wrote to memory of 1600	2436	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1112

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1156

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe
  "C:\Users\Admin\AppData\Local\Temp\21d7e5843f826e6802821180962290046428053d57567ba889e9e64080492d9cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2520
- - 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:2436

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1600

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/1112-18-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1112-36-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1112-24-0x0000000077B81000-0x0000000077B82000-memory.dmp

Filesize
4KB

Download
memory/1112-19-0x0000000077B81000-0x0000000077B82000-memory.dmp

Filesize
4KB

Download
memory/1156-22-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1156-32-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1192-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1192-29-0x0000000002760000-0x0000000002766000-memory.dmp

Filesize
24KB

Download
memory/1192-10-0x0000000077B81000-0x0000000077B82000-memory.dmp

Filesize
4KB

Download
memory/1192-4-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1192-25-0x0000000002760000-0x0000000002766000-memory.dmp

Filesize
24KB

Download
memory/1600-30-0x0000000001F30000-0x0000000001F36000-memory.dmp

Filesize
24KB

Download
memory/1600-31-0x0000000077B81000-0x0000000077B82000-memory.dmp

Filesize
4KB

Download
memory/1600-28-0x0000000001F30000-0x0000000001F36000-memory.dmp

Filesize
24KB

Download
memory/2436-6-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2436-9-0x0000000077D2F000-0x0000000077D31000-memory.dmp

Filesize
8KB

Download
memory/2436-11-0x0000000077B30000-0x0000000077CD9000-memory.dmp

Filesize
1.7MB

Download
memory/2436-8-0x0000000077D2F000-0x0000000077D30000-memory.dmp

Filesize
4KB

Download
memory/2436-7-0x0000000077D30000-0x0000000077D31000-memory.dmp

Filesize
4KB

Download
memory/2436-37-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2520-13-0x0000000001D10000-0x0000000002710000-memory.dmp

Filesize
10.0MB

Download
memory/2520-12-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2520-0-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2520-5-0x0000000001D10000-0x0000000002710000-memory.dmp

Filesize
10.0MB

Download
memory/2520-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download