formbook | 6259cdb287b7e4ccc0c94ba02ce90415c7c870848c7a85b77723dadcde980310

General

Target

c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
Size

750KB
MD5

5678d33c2d6c778d533ea9df8105572b
SHA1

2cf4b4b47ff854af37c7b930dfdb1a9b44e70d1e
SHA256

c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c
SHA512

7981fd5cbc82995c3f12c55348bc0e73a94f9827a5f087ba8686c6016cc386151a158bb2423f42e61e9ad17b69b349ed9a31da3aa07eaeea03a65c4127e5fafc
SSDEEP

12288:/gDBdSpuu7l3MnVPxlbwtNH22qla5w/yXbxpVpami/yIyqS5mdeBFf:/gDBCuYliVPxVeH0MW/IbxpeuS2Ff

Score

10^/10

formbook f1s1 discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

f1s1

Decoy

dapps.estate

pgt9u.xyz

standoutmarion.com

wk6dr0w3wachi.xyz

graciebarralibertyhill.com

gruenzeug.biz

pannen.xyz

project-foresite.com

xtlvyou.com

magpie.asia

aomih.com

rockellar.com

indeecast.com

newbriswaberkah.com

rosecoolupholder.quest

agffeahqq.xyz

elboutika.online

thehubwub.com

8cycle.solutions

cubied.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4564-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kamue = "\"C:\\Users\\Admin\\AppData\\Local\\Kamue.exe\""	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2004 set thread context of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102

System Location Discovery: System Language Discovery 1 TTPs 1 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	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
4564	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
4564	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102
PID 2004 wrote to memory of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102
PID 2004 wrote to memory of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102
PID 2004 wrote to memory of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102
PID 2004 wrote to memory of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102
PID 2004 wrote to memory of 4564	2004	c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe	102

C:\Users\Admin\AppData\Local\Temp\c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
"C:\Users\Admin\AppData\Local\Temp\c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
  C:\Users\Admin\AppData\Local\Temp\c051df779b1823d423877e93d930056050b6b817948e3377405c8b8087566d0c.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4564

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/2004-0-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2004-1-0x0000000000040000-0x0000000000102000-memory.dmp

Filesize
776KB

Download
memory/2004-2-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/2004-3-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2004-4-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/2004-5-0x00000000006C0000-0x000000000077A000-memory.dmp

Filesize
744KB

Download
memory/2004-6-0x0000000000950000-0x000000000099C000-memory.dmp

Filesize
304KB

Download
memory/2004-7-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/2004-11-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4564-12-0x0000000001290000-0x00000000015DA000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads