tinba | 7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 20:29

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General

Target

7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
Size

160KB
MD5

569b8f3aa497826d3acf8f755593c2f3
SHA1

5075d354f475c9bc73ce903e42ef18fd65b04975
SHA256

7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a
SHA512

c742e592bee729ef9fac420984d169c6c9514b9636a25b284636f637cf5b5ff5ef96796780bf0304423e026304d6fac44049eb523e1a139513e36ea94a869240
SSDEEP

1536:oEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:rY+4MiIkLZJNAQ9J6vu

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\B2379037 = "C:\\Users\\Admin\\AppData\\Roaming\\B2379037\\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/2208-0-0x0000000000400000-0x0000000000428000-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	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe
2844	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2844	winver.exe
1240	Explorer.EXE
1240	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1240	Explorer.EXE
1240	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2844	2208	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	31
PID 2208 wrote to memory of 2844	2208	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	31
PID 2208 wrote to memory of 2844	2208	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	31
PID 2208 wrote to memory of 2844	2208	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	31
PID 2208 wrote to memory of 2844	2208	7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe	31
PID 2844 wrote to memory of 1240	2844	winver.exe	21
PID 2844 wrote to memory of 1104	2844	winver.exe	19
PID 2844 wrote to memory of 1204	2844	winver.exe	20
PID 2844 wrote to memory of 1240	2844	winver.exe	21
PID 2844 wrote to memory of 1364	2844	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1104

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1204

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1240
- C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe
  "C:\Users\Admin\AppData\Local\Temp\7a20772521bba0f2baf27c4e0ba99ea20f93964958ba6103f3625c5e975e250a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2208
- - 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:2844

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1364

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/1104-25-0x0000000001C60000-0x0000000001C66000-memory.dmp

Filesize
24KB

Download
memory/1104-26-0x0000000077631000-0x0000000077632000-memory.dmp

Filesize
4KB

Download
memory/1204-27-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1204-19-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1240-3-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1240-2-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1240-30-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/1240-4-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1240-10-0x0000000077631000-0x0000000077632000-memory.dmp

Filesize
4KB

Download
memory/1240-21-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/1364-24-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

Filesize
24KB

Download
memory/1364-28-0x0000000001EB0000-0x0000000001EB6000-memory.dmp

Filesize
24KB

Download
memory/1364-29-0x0000000077631000-0x0000000077632000-memory.dmp

Filesize
4KB

Download
memory/2208-12-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2208-13-0x0000000001DA0000-0x00000000027A0000-memory.dmp

Filesize
10.0MB

Download
memory/2208-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2208-5-0x0000000001DA0000-0x00000000027A0000-memory.dmp

Filesize
10.0MB

Download
memory/2208-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2844-11-0x00000000775E0000-0x0000000077789000-memory.dmp

Filesize
1.7MB

Download
memory/2844-9-0x00000000777DF000-0x00000000777E1000-memory.dmp

Filesize
8KB

Download
memory/2844-8-0x00000000777DF000-0x00000000777E0000-memory.dmp

Filesize
4KB

Download
memory/2844-7-0x00000000777E0000-0x00000000777E1000-memory.dmp

Filesize
4KB

Download
memory/2844-6-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download
memory/2844-31-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download
memory/2844-36-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download