tinba | 82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 08:39

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General

Target

82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe
Size

110KB
MD5

7a95521176424a59d9249b8bebab987a
SHA1

56e14555f7fb09729d046b88be72ed8ad2fd40da
SHA256

82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76
SHA512

13f91b3e7af1b13c5bfaa2c7fcbc7fab570847eba5481bac85ac5cc914e2ea580ab95eb3663bd30321fcfcc3734a99d4e591685a7de3f13bee0fe356a3b8c439
SSDEEP

1536:biLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:biyvRmDLs/ZrwWJjAqGcRJ2hQ

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\347267C7 = "C:\\Users\\Admin\\AppData\\Roaming\\347267C7\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3396-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4772	1840	WerFault.exe	84

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	82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1840	winver.exe
1840	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3512	Explorer.EXE
Token: SeCreatePagefilePrivilege	3512	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1840	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 1840	3396	82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe	84
PID 3396 wrote to memory of 1840	3396	82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe	84
PID 3396 wrote to memory of 1840	3396	82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe	84
PID 3396 wrote to memory of 1840	3396	82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe	84
PID 1840 wrote to memory of 3512	1840	winver.exe	56
PID 1840 wrote to memory of 2460	1840	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2460

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3512
- C:\Users\Admin\AppData\Local\Temp\82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe
  "C:\Users\Admin\AppData\Local\Temp\82f36dd9c6ce4cdc97df2c07ed268a02c6e35ac23901c2279d8fcb5c0f529e76.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3396
- - 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:1840
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 352
      4⤵
      Program crash
      PID:4772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1840 -ip 1840
1⤵
PID:4428

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/1840-6-0x00007FFE76830000-0x00007FFE76A25000-memory.dmp

Filesize
2.0MB

Download
memory/1840-10-0x00000000014F0000-0x00000000014F6000-memory.dmp

Filesize
24KB

Download
memory/1840-13-0x00000000014F0000-0x00000000014F6000-memory.dmp

Filesize
24KB

Download
memory/2460-12-0x00000000009C0000-0x00000000009C6000-memory.dmp

Filesize
24KB

Download
memory/3396-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3396-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/3396-4-0x00000000022D0000-0x0000000002CD0000-memory.dmp

Filesize
10.0MB

Download
memory/3396-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3396-8-0x00000000022D0000-0x0000000002CD0000-memory.dmp

Filesize
10.0MB

Download
memory/3512-3-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/3512-2-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/3512-5-0x00007FFE768CD000-0x00007FFE768CE000-memory.dmp

Filesize
4KB

Download