tinba | 39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 05:50

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General

Target

39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe
Size

110KB
MD5

51604e0745f10875e3660ef3390fb6b0
SHA1

9488614a9a3df9fdcbe891053d67f83851c95186
SHA256

39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210
SHA512

2225b2be1a2ebc536e0f117768f2a436f3826d7968fc01dd346403d0e8a5001152347020fa779155abd8b34623ea2fdbdc67f6b08619abca675ed46c0aec2737
SSDEEP

1536:tiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:tiyvRmDLs/ZrwWJjAqGcRJ2hA

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\5C85AD79 = "C:\\Users\\Admin\\AppData\\Roaming\\5C85AD79\\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/2132-0-0x0000000000400000-0x000000000041E000-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	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe
2784	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2784	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2784	2132	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	31
PID 2132 wrote to memory of 2784	2132	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	31
PID 2132 wrote to memory of 2784	2132	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	31
PID 2132 wrote to memory of 2784	2132	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	31
PID 2132 wrote to memory of 2784	2132	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	31
PID 2784 wrote to memory of 1212	2784	winver.exe	21
PID 2784 wrote to memory of 1100	2784	winver.exe	19
PID 2784 wrote to memory of 1176	2784	winver.exe	20
PID 2784 wrote to memory of 1212	2784	winver.exe	21
PID 2784 wrote to memory of 1284	2784	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1100

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212
- C:\Users\Admin\AppData\Local\Temp\39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe
  "C:\Users\Admin\AppData\Local\Temp\39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2132
- - 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:2784

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1284

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/1100-27-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/1100-28-0x0000000076DD1000-0x0000000076DD2000-memory.dmp

Filesize
4KB

Download
memory/1176-21-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1176-29-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1212-3-0x00000000040C0000-0x00000000040C6000-memory.dmp

Filesize
24KB

Download
memory/1212-10-0x0000000076DD1000-0x0000000076DD2000-memory.dmp

Filesize
4KB

Download
memory/1212-4-0x00000000040C0000-0x00000000040C6000-memory.dmp

Filesize
24KB

Download
memory/1212-23-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1212-2-0x00000000040C0000-0x00000000040C6000-memory.dmp

Filesize
24KB

Download
memory/1212-30-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1284-33-0x0000000076DD1000-0x0000000076DD2000-memory.dmp

Filesize
4KB

Download
memory/1284-26-0x0000000001D50000-0x0000000001D56000-memory.dmp

Filesize
24KB

Download
memory/1284-32-0x0000000001D50000-0x0000000001D56000-memory.dmp

Filesize
24KB

Download
memory/2132-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2132-13-0x0000000001C40000-0x0000000002640000-memory.dmp

Filesize
10.0MB

Download
memory/2132-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2132-5-0x0000000001C40000-0x0000000002640000-memory.dmp

Filesize
10.0MB

Download
memory/2132-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2784-6-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/2784-7-0x0000000076F80000-0x0000000076F81000-memory.dmp

Filesize
4KB

Download
memory/2784-8-0x0000000076F7F000-0x0000000076F80000-memory.dmp

Filesize
4KB

Download
memory/2784-9-0x0000000076F7F000-0x0000000076F81000-memory.dmp

Filesize
8KB

Download
memory/2784-31-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/2784-11-0x0000000076D80000-0x0000000076F29000-memory.dmp

Filesize
1.7MB

Download