formbook | 89becd710336f2209feb37d3b81c1365a6bd5294aa97a55a518e3de3c53e66d0

General

Target

fbc3f3a7f0f45884391344b59f3be525~.exe
Size

685KB
MD5

545a4dd9df628154e366b4d6d2cd0d8a
SHA1

8f4119a2b2dbfbd30176fe1dac214f6cad5c4561
SHA256

b04bbb925d5f966d67fbfe7bbd2531e8891b1eb275ef8140006bc48d10e66171
SHA512

ff7fe6d0aae893226bd277c13509584f0169a8804fa85ece1de149e49d9dde379cb1d50990636a5592bbf9abf175e5d5c00344b632183c020ba16556406676f1

Score

10^/10

formbook n7ak persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

C2

http://www.kmresults.com/n7ak/

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1056-62-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/1056-64-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral1/memory/1056-69-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral1/memory/1140-74-0x0000000000070000-0x000000000009E000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fbc3f3a7f0f45884391344b59f3be525~.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\Juknwfue = "C:\\Users\\Admin\\Contacts\\eufwnkuJ.url"	fbc3f3a7f0f45884391344b59f3be525~.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

logagent.execscript.exe

description	pid	process	target process
PID 1056 set thread context of 1300	1056	logagent.exe	Explorer.EXE
PID 1056 set thread context of 1300	1056	logagent.exe	Explorer.EXE
PID 1140 set thread context of 1300	1140	cscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

logagent.execscript.exe

pid	process
1056	logagent.exe
1056	logagent.exe
1056	logagent.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe
1140	cscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

logagent.execscript.exe

pid process

1056 logagent.exe
1056 logagent.exe
1056 logagent.exe
1056 logagent.exe
1140 cscript.exe
1140 cscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

logagent.execscript.exe

description pid process

Token: SeDebugPrivilege 1056 logagent.exe
Token: SeDebugPrivilege 1140 cscript.exe

description	pid	process
Token: SeDebugPrivilege	1056	logagent.exe
Token: SeDebugPrivilege	1140	cscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

fbc3f3a7f0f45884391344b59f3be525~.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 2032 wrote to memory of 1056	2032	fbc3f3a7f0f45884391344b59f3be525~.exe	logagent.exe
PID 1300 wrote to memory of 1140	1300	Explorer.EXE	cscript.exe
PID 1300 wrote to memory of 1140	1300	Explorer.EXE	cscript.exe
PID 1300 wrote to memory of 1140	1300	Explorer.EXE	cscript.exe
PID 1300 wrote to memory of 1140	1300	Explorer.EXE	cscript.exe
PID 1140 wrote to memory of 1352	1140	cscript.exe	cmd.exe
PID 1140 wrote to memory of 1352	1140	cscript.exe	cmd.exe
PID 1140 wrote to memory of 1352	1140	cscript.exe	cmd.exe
PID 1140 wrote to memory of 1352	1140	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1300

C:\Users\Admin\AppData\Local\Temp\fbc3f3a7f0f45884391344b59f3be525~.exe
"C:\Users\Admin\AppData\Local\Temp\fbc3f3a7f0f45884391344b59f3be525~.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\logagent.exe
C:\Windows\System32\logagent.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1056

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1140

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\logagent.exe"
3⤵
PID:1352

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1056-67-0x0000000000250000-0x0000000000264000-memory.dmp

Filesize
80KB

Download
memory/1056-65-0x00000000021B0000-0x00000000024B3000-memory.dmp

Filesize
3.0MB

Download
memory/1056-70-0x00000000002E0000-0x00000000002F4000-memory.dmp

Filesize
80KB

Download
memory/1056-63-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1056-59-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1056-60-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1056-62-0x0000000000000000-mapping.dmp

Download
memory/1056-64-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1056-69-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1140-73-0x0000000000FA0000-0x0000000000FC2000-memory.dmp

Filesize
136KB

Download
memory/1140-72-0x0000000000000000-mapping.dmp

Download
memory/1140-74-0x0000000000070000-0x000000000009E000-memory.dmp

Filesize
184KB

Download
memory/1140-76-0x0000000000C80000-0x0000000000F83000-memory.dmp

Filesize
3.0MB

Download
memory/1140-77-0x0000000000570000-0x0000000000603000-memory.dmp

Filesize
588KB

Download
memory/1300-78-0x0000000007220000-0x0000000007323000-memory.dmp

Filesize
1.0MB

Download
memory/1300-68-0x0000000006B70000-0x0000000006CA8000-memory.dmp

Filesize
1.2MB

Download
memory/1300-71-0x00000000070C0000-0x0000000007220000-memory.dmp

Filesize
1.4MB

Download
memory/1352-75-0x0000000000000000-mapping.dmp

Download
memory/2032-56-0x00000000002C1000-0x00000000002D2000-memory.dmp

Filesize
68KB

Download
memory/2032-58-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2032-57-0x00000000002D2000-0x00000000002D3000-memory.dmp

Filesize
4KB

Download
memory/2032-55-0x0000000075881000-0x0000000075883000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads