tinba | 8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b

General

Target

8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe
Size

113KB
MD5

e4302d684967bb84560e69c19996ea97
SHA1

c5d530027ca7cdd224dba46b7fc4d1b4a8a246c7
SHA256

8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b
SHA512

006254a6c4c1f145eb1d74bc10f62c161d466ce7218152c0a90203dcd8564ca0400c9365632e709807bcebe36e0630faafbeda5ead59bf04d180dacb619af828
SSDEEP

1536:3iLOvRmmQegJfBbmAQ256/ZrwWhwqjhurmKFcbL86WV0Eh:3iyvRmDLs/ZrwWjjAqGcfzWHh

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

Processes:

winver.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\212EE2C2 = "C:\\Users\\Admin\\AppData\\Roaming\\212EE2C2\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1312-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1108 3968 WerFault.exe winver.exe

pid	pid_target	process	target process
1108	3968	WerFault.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

Processes:

8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exewinver.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

winver.exe

pid process

3968 winver.exe
3968 winver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Explorer.EXE

description pid process

Token: SeShutdownPrivilege 3528 Explorer.EXE
Token: SeCreatePagefilePrivilege 3528 Explorer.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

winver.exe

pid process

3968 winver.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3528 Explorer.EXE

pid	process
3968	winver.exe
3968	winver.exe

description	pid	process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

pid	process
3968	winver.exe

pid	process
3528	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exewinver.exe

description	pid	process	target process
PID 1312 wrote to memory of 3968	1312	8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe	winver.exe
PID 1312 wrote to memory of 3968	1312	8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe	winver.exe
PID 1312 wrote to memory of 3968	1312	8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe	winver.exe
PID 1312 wrote to memory of 3968	1312	8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe	winver.exe
PID 3968 wrote to memory of 3528	3968	winver.exe	Explorer.EXE
PID 3968 wrote to memory of 3108	3968	winver.exe	sihost.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3108

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3528
- C:\Users\Admin\AppData\Local\Temp\8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe
  "C:\Users\Admin\AppData\Local\Temp\8671cdb5f474895ddc4b4e5616a8037ca2e03d5bfd0087e61e5b11dae01e7e8b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1312
- - 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:3968
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3968 -s 356
      4⤵
      Program crash
      PID:1108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3968 -ip 3968
1⤵
PID:4080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1312-10-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1312-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/1312-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1312-4-0x00000000022D0000-0x0000000002CD0000-memory.dmp

Filesize
10.0MB

Download
memory/1312-11-0x00000000022D0000-0x0000000002CD0000-memory.dmp

Filesize
10.0MB

Download
memory/3108-16-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3528-3-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3528-7-0x00007FFB43C6D000-0x00007FFB43C6E000-memory.dmp

Filesize
4KB

Download
memory/3528-12-0x00007FFB43E00000-0x00007FFB43E01000-memory.dmp

Filesize
4KB

Download
memory/3528-2-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3968-5-0x0000000000F60000-0x0000000000F66000-memory.dmp

Filesize
24KB

Download
memory/3968-8-0x00007FFB43BD0000-0x00007FFB43DC5000-memory.dmp

Filesize
2.0MB

Download
memory/3968-6-0x0000000077E12000-0x0000000077E13000-memory.dmp

Filesize
4KB

Download
memory/3968-17-0x0000000000F60000-0x0000000000F66000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads