tinba | 83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3c

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 15:18

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General

Target

83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe
Size

45KB
MD5

0dd285a07294418cdebf5cb3850fcac0
SHA1

2f39a6b817d8941241cf03371e7be7af2a5f70ec
SHA256

83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3c
SHA512

006ba8a50af3b2bb25717689f9034a621d828ad3ebdb5050b9b8324b7e3f16b16f7423b492c10cf2379eb72805880882f9105409521edfca633ff450f9b16e7b
SSDEEP

768:YhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2H:ksWE9N5dFu53dsniQaB/xZ14n7zIF+qT

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\10B92F6C = "C:\\Users\\Admin\\AppData\\Roaming\\10B92F6C\\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/2932-0-0x0000000000400000-0x000000000041D000-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	83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe
2496	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2496	winver.exe
1232	Explorer.EXE
1232	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1232	Explorer.EXE
1232	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2496	2932	83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe	31
PID 2932 wrote to memory of 2496	2932	83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe	31
PID 2932 wrote to memory of 2496	2932	83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe	31
PID 2932 wrote to memory of 2496	2932	83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe	31
PID 2932 wrote to memory of 2496	2932	83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe	31
PID 2496 wrote to memory of 1232	2496	winver.exe	21
PID 2496 wrote to memory of 1116	2496	winver.exe	19
PID 2496 wrote to memory of 1176	2496	winver.exe	20
PID 2496 wrote to memory of 1232	2496	winver.exe	21
PID 2496 wrote to memory of 1316	2496	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1232
- C:\Users\Admin\AppData\Local\Temp\83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe
  "C:\Users\Admin\AppData\Local\Temp\83527c050e70b779159b564fbf81d98fc9c3cbf73a39bb334ad4b9a89fe24b3cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2932
- - 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:2496

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1316

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/1116-30-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1116-27-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1116-22-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1116-19-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1116-37-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/1176-28-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1176-29-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1232-26-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1232-10-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1232-34-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1232-2-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/1232-3-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/1232-4-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/1316-35-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1316-33-0x0000000001D30000-0x0000000001D36000-memory.dmp

Filesize
24KB

Download
memory/1316-40-0x0000000001D30000-0x0000000001D36000-memory.dmp

Filesize
24KB

Download
memory/1316-36-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/2496-7-0x0000000077660000-0x0000000077661000-memory.dmp

Filesize
4KB

Download
memory/2496-8-0x000000007765F000-0x0000000077660000-memory.dmp

Filesize
4KB

Download
memory/2496-20-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2496-9-0x000000007765F000-0x0000000077661000-memory.dmp

Filesize
8KB

Download
memory/2496-11-0x0000000077460000-0x0000000077609000-memory.dmp

Filesize
1.7MB

Download
memory/2496-6-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2932-13-0x0000000001D00000-0x0000000002700000-memory.dmp

Filesize
10.0MB

Download
memory/2932-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2932-5-0x0000000001D00000-0x0000000002700000-memory.dmp

Filesize
10.0MB

Download
memory/2932-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2932-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download