formbook | 0b2d1bf2ca75ec2f3db69659158e685cec6efb71e4be9e277af99b3ad0508c11

General

Target

Untitled attachment 00032.exe
Size

774KB
MD5

4409e2201e897419028a58a9d41e1e69
SHA1

41f62fb8e11de4e2b93a05cb806dc5574b40ae99
SHA256

0b2d1bf2ca75ec2f3db69659158e685cec6efb71e4be9e277af99b3ad0508c11
SHA512

5dc4acedbbc631fb460027ac966f22cc0d34c0f7dc673a48bff73d5fcffd87a691c4ef2204ee7d0e0343b6e9daac3f6c008c8f36f36e255dd8ae331dacd0744c

Score

10^/10

formbook n7ak persistence rat spyware stealer 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

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4332-117-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/4332-119-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral2/memory/4332-122-0x0000000000650000-0x000000000079A000-memory.dmp	formbook
behavioral2/memory/4552-127-0x0000000003030000-0x000000000305E000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Untitled attachment 00032.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wilbwux = "C:\\Users\\Public\\Libraries\\xuwbliW.url"	Untitled attachment 00032.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

mobsync.exeraserver.exe

description	pid	process	target process
PID 4332 set thread context of 3020	4332	mobsync.exe	Explorer.EXE
PID 4552 set thread context of 3020	4552	raserver.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

mobsync.exeraserver.exe

pid	process
4332	mobsync.exe
4332	mobsync.exe
4332	mobsync.exe
4332	mobsync.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe
4552	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

mobsync.exeraserver.exe

pid process

4332 mobsync.exe
4332 mobsync.exe
4332 mobsync.exe
4552 raserver.exe
4552 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mobsync.exeraserver.exe

description pid process

Token: SeDebugPrivilege 4332 mobsync.exe
Token: SeDebugPrivilege 4552 raserver.exe

pid	process
3020	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4332	mobsync.exe
Token: SeDebugPrivilege	4552	raserver.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Untitled attachment 00032.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 3736 wrote to memory of 4332	3736	Untitled attachment 00032.exe	mobsync.exe
PID 3736 wrote to memory of 4332	3736	Untitled attachment 00032.exe	mobsync.exe
PID 3736 wrote to memory of 4332	3736	Untitled attachment 00032.exe	mobsync.exe
PID 3736 wrote to memory of 4332	3736	Untitled attachment 00032.exe	mobsync.exe
PID 3736 wrote to memory of 4332	3736	Untitled attachment 00032.exe	mobsync.exe
PID 3736 wrote to memory of 4332	3736	Untitled attachment 00032.exe	mobsync.exe
PID 3020 wrote to memory of 4552	3020	Explorer.EXE	raserver.exe
PID 3020 wrote to memory of 4552	3020	Explorer.EXE	raserver.exe
PID 3020 wrote to memory of 4552	3020	Explorer.EXE	raserver.exe
PID 4552 wrote to memory of 4640	4552	raserver.exe	cmd.exe
PID 4552 wrote to memory of 4640	4552	raserver.exe	cmd.exe
PID 4552 wrote to memory of 4640	4552	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Local\Temp\Untitled attachment 00032.exe
"C:\Users\Admin\AppData\Local\Temp\Untitled attachment 00032.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3736

C:\Windows\SysWOW64\mobsync.exe
C:\Windows\System32\mobsync.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4332

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\mobsync.exe"
3⤵
PID:4640

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

Loading Replay Monitor...

Downloads

memory/3020-130-0x0000000005CA0000-0x0000000005DD9000-memory.dmp

Filesize
1.2MB

Download
memory/3020-123-0x00000000024E0000-0x00000000025C7000-memory.dmp

Filesize
924KB

Download
memory/3736-115-0x0000000002811000-0x0000000002825000-memory.dmp

Filesize
80KB

Download
memory/3736-116-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/4332-121-0x0000000004500000-0x0000000004820000-memory.dmp

Filesize
3.1MB

Download
memory/4332-122-0x0000000000650000-0x000000000079A000-memory.dmp

Filesize
1.3MB

Download
memory/4332-119-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/4332-118-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/4332-117-0x0000000000000000-mapping.dmp

Download
memory/4552-124-0x0000000000000000-mapping.dmp

Download
memory/4552-126-0x0000000000280000-0x000000000029F000-memory.dmp

Filesize
124KB

Download
memory/4552-127-0x0000000003030000-0x000000000305E000-memory.dmp

Filesize
184KB

Download
memory/4552-128-0x00000000045E0000-0x0000000004900000-memory.dmp

Filesize
3.1MB

Download
memory/4552-129-0x00000000049A0000-0x0000000004A33000-memory.dmp

Filesize
588KB

Download
memory/4640-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads