tinba | 81dc0d4731ef09ddf32720d5448b1539e82ca9d7db8d73953a7904bf62b80e1d

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/09/2024, 10:56

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General

Target

ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe
Size

34KB
MD5

959948adae63fd46c460fa276e6a80a7
SHA1

76f2ee006fe888043c754bf7f54e352fd06e400a
SHA256

ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab
SHA512

587c9f05075c35713458ff4bbf3b752ae653c16bd37b9d196d46f56b65c23b37402ba9f711e5d6bf0dd86e125bb2d1cf11e20423e089e1b6e7ce62e331bb2ed4
SSDEEP

768:3p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:3pYoX58z1uirL98xMWnT0OQ9J2

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2420-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\F20EFAE4 = "C:\\Users\\Admin\\AppData\\Roaming\\F20EFAE4\\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	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe
3028	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3028	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 3028	2420	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	30
PID 2420 wrote to memory of 3028	2420	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	30
PID 2420 wrote to memory of 3028	2420	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	30
PID 2420 wrote to memory of 3028	2420	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	30
PID 2420 wrote to memory of 3028	2420	ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe	30
PID 3028 wrote to memory of 1364	3028	winver.exe	20
PID 3028 wrote to memory of 1232	3028	winver.exe	18
PID 3028 wrote to memory of 1304	3028	winver.exe	19
PID 3028 wrote to memory of 1364	3028	winver.exe	20
PID 3028 wrote to memory of 1620	3028	winver.exe	22

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1232

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1304

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1364
- C:\Users\Admin\AppData\Local\Temp\ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe
  "C:\Users\Admin\AppData\Local\Temp\ab2c3b13eb7e6a4778676adc4279b8faff9769b5e561de770bff0f8e2f1687ab.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2420
- - 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:3028

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1620

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/1232-25-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download
memory/1232-26-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1304-31-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1304-20-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1364-27-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1364-2-0x00000000025B0000-0x00000000025B6000-memory.dmp

Filesize
24KB

Download
memory/1364-4-0x00000000025B0000-0x00000000025B6000-memory.dmp

Filesize
24KB

Download
memory/1364-3-0x00000000025B0000-0x00000000025B6000-memory.dmp

Filesize
24KB

Download
memory/1364-10-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1364-22-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1620-24-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1620-28-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1620-30-0x0000000077641000-0x0000000077642000-memory.dmp

Filesize
4KB

Download
memory/1620-29-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2420-5-0x0000000001CF0000-0x00000000026F0000-memory.dmp

Filesize
10.0MB

Download
memory/2420-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2420-13-0x0000000001CF0000-0x00000000026F0000-memory.dmp

Filesize
10.0MB

Download
memory/2420-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2420-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/3028-6-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download
memory/3028-7-0x00000000777F0000-0x00000000777F1000-memory.dmp

Filesize
4KB

Download
memory/3028-8-0x00000000777EF000-0x00000000777F0000-memory.dmp

Filesize
4KB

Download
memory/3028-9-0x00000000777EF000-0x00000000777F1000-memory.dmp

Filesize
8KB

Download
memory/3028-11-0x00000000775F0000-0x0000000077799000-memory.dmp

Filesize
1.7MB

Download
memory/3028-32-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download
memory/3028-37-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download