tinba | 55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f

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
01-12-2024 11:41

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General

Target

55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe
Size

88KB
MD5

59d5aa5cc890f9da4d49e27aa883295f
SHA1

e1ab83c118c391d779654a9619d1125f94a0c08b
SHA256

55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f
SHA512

2c99cbaa9ca011bd8d0b70d22c2dc311c4a2faef439890e88fc06b833f60ddfadb039fc677e34d2f8b71270e2b34ba38200adad6c89e79681d8158ee469bed4e
SSDEEP

1536:+5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:+5fvp12UFKcD/6jwqWsNI

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
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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\BEF0F868 = "C:\\Users\\Admin\\AppData\\Roaming\\BEF0F868\\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	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe
1084	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1084	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 1084	1744	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	30
PID 1744 wrote to memory of 1084	1744	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	30
PID 1744 wrote to memory of 1084	1744	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	30
PID 1744 wrote to memory of 1084	1744	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	30
PID 1744 wrote to memory of 1084	1744	55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe	30
PID 1084 wrote to memory of 1236	1084	winver.exe	20
PID 1084 wrote to memory of 1120	1084	winver.exe	18
PID 1084 wrote to memory of 1180	1084	winver.exe	19
PID 1084 wrote to memory of 1236	1084	winver.exe	20
PID 1084 wrote to memory of 828	1084	winver.exe	24

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1180

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1236
- C:\Users\Admin\AppData\Local\Temp\55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe
  "C:\Users\Admin\AppData\Local\Temp\55bc1d48dcd9f5cdc54daa641496910212c045e6a1d31c1eac97ebd79a72614f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1744
- - 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:1084

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:828

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/828-23-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/828-28-0x0000000077AE1000-0x0000000077AE2000-memory.dmp

Filesize
4KB

Download
memory/828-27-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/1084-5-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1084-6-0x0000000077C90000-0x0000000077C91000-memory.dmp

Filesize
4KB

Download
memory/1084-10-0x0000000077A90000-0x0000000077C39000-memory.dmp

Filesize
1.7MB

Download
memory/1084-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1084-8-0x0000000077C8F000-0x0000000077C91000-memory.dmp

Filesize
8KB

Download
memory/1084-7-0x0000000077C8F000-0x0000000077C90000-memory.dmp

Filesize
4KB

Download
memory/1120-25-0x0000000077AE1000-0x0000000077AE2000-memory.dmp

Filesize
4KB

Download
memory/1120-24-0x0000000001F00000-0x0000000001F06000-memory.dmp

Filesize
24KB

Download
memory/1180-19-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1180-29-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1236-1-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/1236-21-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

Filesize
24KB

Download
memory/1236-3-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/1236-26-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

Filesize
24KB

Download
memory/1236-2-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/1236-9-0x0000000077AE1000-0x0000000077AE2000-memory.dmp

Filesize
4KB

Download
memory/1744-4-0x0000000001DB0000-0x00000000027B0000-memory.dmp

Filesize
10.0MB

Download
memory/1744-12-0x0000000001DB0000-0x00000000027B0000-memory.dmp

Filesize
10.0MB

Download
memory/1744-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/1744-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download