tinba | cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742

General

Target

cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe
Size

34KB
MD5

70bcf6a967bb9a92cf874c537cfbe370
SHA1

a99ccd22430064090d460d56051cb30c13001047
SHA256

cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742
SHA512

cb598d6c9b1c6d30f9c3399927ce7a6d25779d33669c1934d50889ce05fe0cb0abe1752f79fe975aa0716c5db5cbaac7b8e07b1ca8e12c34414ef53f069ca3c3
SSDEEP

768:up22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:upYoX58z1uirL98xMWnT0OQ9J2

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BB8838D1 = "C:\\Users\\Admin\\AppData\\Roaming\\BB8838D1\\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/5100-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2384	4116	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	cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4116	winver.exe
4116	winver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE
Token: SeShutdownPrivilege	3396	Explorer.EXE
Token: SeCreatePagefilePrivilege	3396	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4116	winver.exe
3396	Explorer.EXE
3396	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3396	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 4116	5100	cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe	87
PID 5100 wrote to memory of 4116	5100	cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe	87
PID 5100 wrote to memory of 4116	5100	cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe	87
PID 5100 wrote to memory of 4116	5100	cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe	87
PID 4116 wrote to memory of 3396	4116	winver.exe	56
PID 4116 wrote to memory of 2972	4116	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2972

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3396
- C:\Users\Admin\AppData\Local\Temp\cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe
  "C:\Users\Admin\AppData\Local\Temp\cfa577a2db2ac4e4b92046ae859be2806fdb5d343c2a7fe88cb4d9f681dc5742N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5100
- - 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:4116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 352
      4⤵
      Program crash
      PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4116 -ip 4116
1⤵
PID:1984

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/2972-13-0x0000000000D30000-0x0000000000D36000-memory.dmp

Filesize
24KB

Download
memory/3396-6-0x00007FF947F6D000-0x00007FF947F6E000-memory.dmp

Filesize
4KB

Download
memory/3396-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3396-17-0x00007FF9480E0000-0x00007FF9480E1000-memory.dmp

Filesize
4KB

Download
memory/3396-16-0x00007FF948100000-0x00007FF948101000-memory.dmp

Filesize
4KB

Download
memory/3396-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/4116-11-0x0000000000990000-0x0000000000996000-memory.dmp

Filesize
24KB

Download
memory/4116-5-0x0000000077D12000-0x0000000077D13000-memory.dmp

Filesize
4KB

Download
memory/4116-7-0x00007FF947ED0000-0x00007FF9480C5000-memory.dmp

Filesize
2.0MB

Download
memory/4116-14-0x0000000000990000-0x0000000000996000-memory.dmp

Filesize
24KB

Download
memory/5100-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5100-1-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/5100-9-0x00000000022D0000-0x0000000002CD0000-memory.dmp

Filesize
10.0MB

Download
memory/5100-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5100-4-0x00000000022D0000-0x0000000002CD0000-memory.dmp

Filesize
10.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads