tinba | ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698

General

Target

ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe
Size

110KB
MD5

26e4879486cc14a877b111f6df411ce5
SHA1

79494868e696bb2b59b2380d863d0c96ad3616a5
SHA256

ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698
SHA512

0ca8b185087dd9fe4d7dbb553a2b5dd9a0c4d82eab1eb1c34b7f15f4c033c95821270e507c08cb2661a0d5e6aae947c2f92c1bfbe19c648789832e4ca389c180
SSDEEP

1536:liLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:liyvRmDLs/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

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AAABD2EF = "C:\\Users\\Admin\\AppData\\Roaming\\AAABD2EF\\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/1144-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2308	2820	WerFault.exe	87

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	ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	winver.exe
2820	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2820	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3460	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 2820	1144	ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe	87
PID 1144 wrote to memory of 2820	1144	ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe	87
PID 1144 wrote to memory of 2820	1144	ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe	87
PID 1144 wrote to memory of 2820	1144	ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe	87
PID 2820 wrote to memory of 3460	2820	winver.exe	56
PID 2820 wrote to memory of 2440	2820	winver.exe	42

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2440

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3460
- C:\Users\Admin\AppData\Local\Temp\ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe
  "C:\Users\Admin\AppData\Local\Temp\ac07d55a1f0dc7290545d00f37bef324106cc013dac808baf5185e244448d698.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1144
- - 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:2820
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 352
      4⤵
      Program crash
      PID:2308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2820 -ip 2820
1⤵
PID:1680

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/1144-10-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1144-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/1144-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1144-11-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/1144-4-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/2440-15-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2440-17-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2820-5-0x00000000774B2000-0x00000000774B3000-memory.dmp

Filesize
4KB

Download
memory/2820-7-0x00007FF8DF3B0000-0x00007FF8DF5A5000-memory.dmp

Filesize
2.0MB

Download
memory/2820-13-0x0000000001040000-0x0000000001046000-memory.dmp

Filesize
24KB

Download
memory/2820-16-0x0000000001040000-0x0000000001046000-memory.dmp

Filesize
24KB

Download
memory/3460-8-0x00007FF8DF5E0000-0x00007FF8DF5E1000-memory.dmp

Filesize
4KB

Download
memory/3460-6-0x00007FF8DF44D000-0x00007FF8DF44E000-memory.dmp

Filesize
4KB

Download
memory/3460-2-0x0000000001200000-0x0000000001206000-memory.dmp

Filesize
24KB

Download
memory/3460-3-0x0000000001200000-0x0000000001206000-memory.dmp

Filesize
24KB

Download
memory/3460-18-0x00007FF8DF5C0000-0x00007FF8DF5C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads