tinba | 39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 12:15

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General

Target

39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe
Size

45KB
MD5

72fff3586e2e1b8a53374a4a5e313d80
SHA1

29a5d31e63a6c492b40789cf72b823d1f8ac598e
SHA256

39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12
SHA512

f720e13475d928553667aea627dfc52201d7d15c711537752adbc003be2155234817c86ef4326f9af1f6da90c598a620faae506d6f3c10b0c95d4c3f1b75c7b8
SSDEEP

768:GhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ29:KsWE9N5dFu53dsniQaB/xZ14n7zIF+qB

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\71273BFC = "C:\\Users\\Admin\\AppData\\Roaming\\71273BFC\\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/2516-0-0x0000000000400000-0x000000000041D000-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	39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe
2540	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2540	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2540	2516	39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe	31
PID 2516 wrote to memory of 2540	2516	39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe	31
PID 2516 wrote to memory of 2540	2516	39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe	31
PID 2516 wrote to memory of 2540	2516	39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe	31
PID 2516 wrote to memory of 2540	2516	39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe	31
PID 2540 wrote to memory of 1196	2540	winver.exe	21
PID 2540 wrote to memory of 1108	2540	winver.exe	19
PID 2540 wrote to memory of 1156	2540	winver.exe	20
PID 2540 wrote to memory of 1196	2540	winver.exe	21
PID 2540 wrote to memory of 1676	2540	winver.exe	25

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

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196
- C:\Users\Admin\AppData\Local\Temp\39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe
  "C:\Users\Admin\AppData\Local\Temp\39cdfe92e463f80b21164777dce1399843e181342e3af7444270e0ed65fa9b12N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2516
- - 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:2540

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1676

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/1108-24-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1156-22-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1156-23-0x0000000077AA1000-0x0000000077AA2000-memory.dmp

Filesize
4KB

Download
memory/1156-19-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1196-4-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/1196-2-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/1196-3-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/1196-10-0x0000000077AA1000-0x0000000077AA2000-memory.dmp

Filesize
4KB

Download
memory/1196-21-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1196-29-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1676-31-0x0000000077AA1000-0x0000000077AA2000-memory.dmp

Filesize
4KB

Download
memory/1676-34-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1676-28-0x0000000077AA1000-0x0000000077AA2000-memory.dmp

Filesize
4KB

Download
memory/1676-30-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1676-27-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2516-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2516-13-0x0000000001C20000-0x0000000002620000-memory.dmp

Filesize
10.0MB

Download
memory/2516-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2516-5-0x0000000001C20000-0x0000000002620000-memory.dmp

Filesize
10.0MB

Download
memory/2516-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2540-6-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download
memory/2540-7-0x0000000077C50000-0x0000000077C51000-memory.dmp

Filesize
4KB

Download
memory/2540-8-0x0000000077C4F000-0x0000000077C50000-memory.dmp

Filesize
4KB

Download
memory/2540-9-0x0000000077C4F000-0x0000000077C51000-memory.dmp

Filesize
8KB

Download
memory/2540-11-0x0000000077A50000-0x0000000077BF9000-memory.dmp

Filesize
1.7MB

Download