formbook | 64632950471c32a49589814ca9fba041394d1e3248781c84077a8806e8863584

General

Target

TNT EXPRESS DELIVERY DOCUMENTS.exe
Size

368KB
MD5

561189349e7ef1918a4c27182a279ca6
SHA1

37165c0b5bd29f23664d55e0e4279f89ccde4275
SHA256

5d11d75dc9ecba71d33f246f0f277ffec929402f96c132d186a398e6942ffb7e
SHA512

96ec8f72b5b031b8724296f620ba3b2e64295da62ae4d56e2d00b84d01bbbe3f3488f51ecdf7ab297b347574783ca4fad1105a1ee5fb97136affa6358c746e55
SSDEEP

6144:dt39+IGUiggkeVXZtFz/icY6FBXmyskHrBggUBmefTm2+zNXsl37t:CgWVXZj/XBGyskdgpfT

Score

10^/10

formbook ch credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

ch

Decoy

dfjz88.com

realtorscreek.com

pl8v5z.info

thicdienthoai.com

areauruguay.com

shimizu-yado.com

apples5.com

hothip.net

jm-legal.online

bkinfo28.online

edificiosakura.net

biodesixlungreflex.com

segurosblanco.com

atsintech.solutions

steuerberaterfinden.com

ojjul.com

udcomputer.com

grovescashflow.com

inglot-jlo.com

docteursnuisible.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2412-12-0x0000000000400000-0x0000000000461000-memory.dmp	formbook
behavioral1/memory/2412-17-0x0000000000400000-0x0000000000461000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2760	cmd.exe

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\XZZX3TBPDH = "C:\\Program Files (x86)\\M-zod408\\chkdskpdd.exe"	help.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 2412	1916	TNT EXPRESS DELIVERY DOCUMENTS.exe	30
PID 2412 set thread context of 1212	2412	TNT EXPRESS DELIVERY DOCUMENTS.exe	21
PID 2296 set thread context of 1212	2296	help.exe	21

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\M-zod408\chkdskpdd.exe	help.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	TNT EXPRESS DELIVERY DOCUMENTS.exe
File opened for modification	C:\Windows\win.ini	TNT EXPRESS DELIVERY DOCUMENTS.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	TNT EXPRESS DELIVERY DOCUMENTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TNT EXPRESS DELIVERY DOCUMENTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2296	help.exe
2296	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
Token: SeDebugPrivilege	2296	help.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1916	TNT EXPRESS DELIVERY DOCUMENTS.exe
1916	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1916	TNT EXPRESS DELIVERY DOCUMENTS.exe
1916	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1916	TNT EXPRESS DELIVERY DOCUMENTS.exe
2412	TNT EXPRESS DELIVERY DOCUMENTS.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2412	1916	TNT EXPRESS DELIVERY DOCUMENTS.exe	30
PID 1916 wrote to memory of 2412	1916	TNT EXPRESS DELIVERY DOCUMENTS.exe	30
PID 1916 wrote to memory of 2412	1916	TNT EXPRESS DELIVERY DOCUMENTS.exe	30
PID 1916 wrote to memory of 2412	1916	TNT EXPRESS DELIVERY DOCUMENTS.exe	30
PID 1212 wrote to memory of 2296	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2296	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2296	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2296	1212	Explorer.EXE	31
PID 2296 wrote to memory of 2760	2296	help.exe	32
PID 2296 wrote to memory of 2760	2296	help.exe	32
PID 2296 wrote to memory of 2760	2296	help.exe	32
PID 2296 wrote to memory of 2760	2296	help.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\TNT EXPRESS DELIVERY DOCUMENTS.exe
  "C:\Users\Admin\AppData\Local\Temp\TNT EXPRESS DELIVERY DOCUMENTS.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1916
- - C:\Users\Admin\AppData\Local\Temp\TNT EXPRESS DELIVERY DOCUMENTS.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT EXPRESS DELIVERY DOCUMENTS.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of SetWindowsHookEx
    PID:2412
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2296
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\TNT EXPRESS DELIVERY DOCUMENTS.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2760

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

2

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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

C:\Users\Admin\AppData\Roaming\L-0A962E\L-0logim.jpeg

Filesize
76KB

MD5
660b91ed39ca1101437c8d50ef07e5a7

SHA1
24eb1fbef83c550511fcb0eab92fad4a20b447b1

SHA256
877e6ee48fc9fb5b6747ffdff9b07188f74d5cd65a9fe8b9293d64997aebc710

SHA512
5eee520c52361af5bc566c17fa825756f817db7626d25408bbc7699e885a324d462bee9cfaa6c111f27b5f192fb8b960f4671ca9fa22ed4b5eab1ba2defb1393

Download Submit
C:\Users\Admin\AppData\Roaming\L-0A962E\L-0logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\L-0A962E\L-0logrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
C:\Windows\win.ini

Filesize
509B

MD5
d2a2412bddba16d60ec63bd9550d933f

SHA1
deb3d3bdc9055f0b4909b31d3048446848fae0e1

SHA256
79ff2254e38192be1626d05bec6c82e10c85e1cf91df7440c4c443380a1e877a

SHA512
8fecada107f72e59e43a689eeb8e2e18fa6134d0941c122025ed5bd00e5eab8114d7125bd289505be75641385a0c3f112d402c693f142c3ddc870d5fa8116e31

Download Submit
memory/1212-20-0x00000000051A0000-0x0000000005333000-memory.dmp

Filesize
1.6MB

Download
memory/1212-25-0x0000000006C70000-0x0000000006DC5000-memory.dmp

Filesize
1.3MB

Download
memory/1212-27-0x0000000006C70000-0x0000000006DC5000-memory.dmp

Filesize
1.3MB

Download
memory/1212-24-0x0000000006C70000-0x0000000006DC5000-memory.dmp

Filesize
1.3MB

Download
memory/1212-14-0x00000000051A0000-0x0000000005333000-memory.dmp

Filesize
1.6MB

Download
memory/1916-2-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/1916-10-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/1916-5-0x0000000077490000-0x0000000077639000-memory.dmp

Filesize
1.7MB

Download
memory/1916-4-0x0000000077491000-0x0000000077592000-memory.dmp

Filesize
1.0MB

Download
memory/2296-16-0x0000000000FE0000-0x0000000000FE6000-memory.dmp

Filesize
24KB

Download
memory/2296-19-0x0000000000FE0000-0x0000000000FE6000-memory.dmp

Filesize
24KB

Download
memory/2412-17-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2412-11-0x0000000077490000-0x0000000077639000-memory.dmp

Filesize
1.7MB

Download
memory/2412-12-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2412-13-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads