tinba | 50a76d32cb4a4ba7d40a5bfe92ac7eb3b6b56d8d0c42515983de1211fc288cb1

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31/08/2024, 16:06

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General

Target

e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe
Size

88KB
MD5

a1e3882b857839a38efd9dc4072ae777
SHA1

24d2fe9d7bebafe20c33b0206e2b54f7b8644e40
SHA256

e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597
SHA512

1f3d486aa50ad2fc2963399cd8245d7ac012f9022aa059eff08a23f00ba107aca9cb4134201661f9dc03e2c863499bfe70d2ac563ae1ad070522282204ba99b4
SSDEEP

1536:x5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsN:x5fvp12UFKcD/6jwqWsN

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

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\AEB4FBE2 = "C:\\Users\\Admin\\AppData\\Roaming\\AEB4FBE2\\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	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe
2904	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2904	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2904	2604	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	31
PID 2604 wrote to memory of 2904	2604	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	31
PID 2604 wrote to memory of 2904	2604	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	31
PID 2604 wrote to memory of 2904	2604	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	31
PID 2604 wrote to memory of 2904	2604	e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe	31
PID 2904 wrote to memory of 1204	2904	winver.exe	21
PID 2904 wrote to memory of 1116	2904	winver.exe	19
PID 2904 wrote to memory of 1164	2904	winver.exe	20
PID 2904 wrote to memory of 1204	2904	winver.exe	21
PID 2904 wrote to memory of 324	2904	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:1164

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204
- C:\Users\Admin\AppData\Local\Temp\e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe
  "C:\Users\Admin\AppData\Local\Temp\e4a590a8e9fee016e8848e475eb607eb928228d51d31d2aa9bb4615f95942597.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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:2904

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:324

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/324-34-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/324-22-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/324-23-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/324-24-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/324-26-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/1116-27-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/1116-31-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/1116-28-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/1164-32-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1164-30-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/1164-18-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1164-29-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/1204-20-0x0000000002B70000-0x0000000002B76000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000002DD0000-0x0000000002DD6000-memory.dmp

Filesize
24KB

Download
memory/1204-1-0x0000000002DD0000-0x0000000002DD6000-memory.dmp

Filesize
24KB

Download
memory/1204-25-0x0000000002B70000-0x0000000002B76000-memory.dmp

Filesize
24KB

Download
memory/1204-9-0x00000000778C1000-0x00000000778C2000-memory.dmp

Filesize
4KB

Download
memory/1204-3-0x0000000002DD0000-0x0000000002DD6000-memory.dmp

Filesize
24KB

Download
memory/2604-4-0x0000000001B90000-0x0000000002590000-memory.dmp

Filesize
10.0MB

Download
memory/2604-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2604-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2604-12-0x0000000001B90000-0x0000000002590000-memory.dmp

Filesize
10.0MB

Download
memory/2904-8-0x0000000077A6F000-0x0000000077A71000-memory.dmp

Filesize
8KB

Download
memory/2904-10-0x0000000077870000-0x0000000077A19000-memory.dmp

Filesize
1.7MB

Download
memory/2904-7-0x0000000077A6F000-0x0000000077A70000-memory.dmp

Filesize
4KB

Download
memory/2904-6-0x0000000077A70000-0x0000000077A71000-memory.dmp

Filesize
4KB

Download
memory/2904-33-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2904-5-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download