tinba | bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 00:53

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General

Target

bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe
Size

89KB
MD5

ed1965d31f5c1d1496d7efa158a6351c
SHA1

72785ff1fd25124ac29a4cba486ae41418f276fe
SHA256

bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39
SHA512

f319eb1077e254c688e521eda311bab5f0727b83648ca28d13c95e6c9f9f0faaea61e89edd8f52913a3de8b0087b2125858698bf75ea3132a148069c28e9cd51
SSDEEP

1536:2r+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7q:4+4MJIkLZJNAQ9Jo9q

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\99F7A153 = "C:\\Users\\Admin\\AppData\\Roaming\\99F7A153\\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/2736-0-0x0000000000400000-0x0000000000418000-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	bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe
2840	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2840	winver.exe
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2840	2736	bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe	31
PID 2736 wrote to memory of 2840	2736	bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe	31
PID 2736 wrote to memory of 2840	2736	bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe	31
PID 2736 wrote to memory of 2840	2736	bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe	31
PID 2736 wrote to memory of 2840	2736	bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe	31
PID 2840 wrote to memory of 1204	2840	winver.exe	21
PID 2840 wrote to memory of 1076	2840	winver.exe	18
PID 2840 wrote to memory of 1144	2840	winver.exe	19
PID 2840 wrote to memory of 1204	2840	winver.exe	21
PID 2840 wrote to memory of 644	2840	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1076

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1144

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1204
- C:\Users\Admin\AppData\Local\Temp\bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe
  "C:\Users\Admin\AppData\Local\Temp\bbecdaf4eedadfd40cbcbe3032c9b0e55eb7f1a94dd84a3a0f3f14c37f53eb39.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2736
- - 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:2840

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:644

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/644-25-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/644-29-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/644-30-0x0000000077951000-0x0000000077952000-memory.dmp

Filesize
4KB

Download
memory/1076-26-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/1076-27-0x0000000077951000-0x0000000077952000-memory.dmp

Filesize
4KB

Download
memory/1144-21-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1144-28-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

Filesize
24KB

Download
memory/1204-10-0x0000000077951000-0x0000000077952000-memory.dmp

Filesize
4KB

Download
memory/1204-3-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

Filesize
24KB

Download
memory/1204-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1204-4-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

Filesize
24KB

Download
memory/1204-32-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2736-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2736-5-0x0000000001BD0000-0x00000000025D0000-memory.dmp

Filesize
10.0MB

Download
memory/2736-12-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2736-13-0x0000000001BD0000-0x00000000025D0000-memory.dmp

Filesize
10.0MB

Download
memory/2736-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2840-11-0x0000000077900000-0x0000000077AA9000-memory.dmp

Filesize
1.7MB

Download
memory/2840-31-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2840-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2840-7-0x0000000077B00000-0x0000000077B01000-memory.dmp

Filesize
4KB

Download
memory/2840-8-0x0000000077AFF000-0x0000000077B00000-memory.dmp

Filesize
4KB

Download
memory/2840-9-0x0000000077AFF000-0x0000000077B01000-memory.dmp

Filesize
8KB

Download
memory/2840-37-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download