tinba | c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299

Analysis

max time kernel
108s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 16:51

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General

Target

c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe
Size

110KB
MD5

f29ddb71e5dadf1e58c44421c9e24af0
SHA1

dd338a2cd11386158365b6c84adb348d1a0baccd
SHA256

c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299
SHA512

0f36945698f442f6b780766dacadf663fb2a9ebf11b461e3fa3196888ee83e0a990c83253d830a3585efa16a6d6a14ac0a50ec8e6dd653df2c83a83b1b230773
SSDEEP

1536:CiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:CiyvRmDLs/ZrwWJjAqGcRJ2hg

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E528EA6F = "C:\\Users\\Admin\\AppData\\Roaming\\E528EA6F\\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/1004-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4800	4272	WerFault.exe	83

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	c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4272	winver.exe
4272	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4272	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1004 wrote to memory of 4272	1004	c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe	83
PID 1004 wrote to memory of 4272	1004	c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe	83
PID 1004 wrote to memory of 4272	1004	c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe	83
PID 1004 wrote to memory of 4272	1004	c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe	83
PID 4272 wrote to memory of 3484	4272	winver.exe	56
PID 4272 wrote to memory of 2552	4272	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2552

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3484
- C:\Users\Admin\AppData\Local\Temp\c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe
  "C:\Users\Admin\AppData\Local\Temp\c85bad2f2c27dcc40bf728fe7a242c74a2fdd222ea631603d6225bbaba89c299N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1004
- - 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:4272
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4272 -s 352
      4⤵
      Program crash
      PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4272 -ip 4272
1⤵
PID:2504

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/1004-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1004-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/1004-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1004-4-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/1004-10-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/2552-14-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/3484-3-0x0000000001190000-0x0000000001196000-memory.dmp

Filesize
24KB

Download
memory/3484-6-0x00007FFBC71ED000-0x00007FFBC71EE000-memory.dmp

Filesize
4KB

Download
memory/3484-2-0x0000000001190000-0x0000000001196000-memory.dmp

Filesize
24KB

Download
memory/4272-7-0x00007FFBC7150000-0x00007FFBC7345000-memory.dmp

Filesize
2.0MB

Download
memory/4272-5-0x0000000077DD2000-0x0000000077DD3000-memory.dmp

Filesize
4KB

Download
memory/4272-12-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/4272-15-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download