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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/848-59-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/848-63-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral1/memory/1096-69-0x00000000000C0000-0x00000000000EE000-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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wilbwux = "C:\\Users\\Public\\Libraries\\xuwbliW.url"	Untitled attachment 00032.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

mobsync.exeNAPSTAT.EXE

description	pid	process	target process
PID 848 set thread context of 1268	848	mobsync.exe	Explorer.EXE
PID 1096 set thread context of 1268	1096	NAPSTAT.EXE	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

mobsync.exeNAPSTAT.EXE

pid	process
848	mobsync.exe
848	mobsync.exe
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE
1096	NAPSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

mobsync.exeNAPSTAT.EXE

pid process

848 mobsync.exe
848 mobsync.exe
848 mobsync.exe
1096 NAPSTAT.EXE
1096 NAPSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mobsync.exeNAPSTAT.EXE

description pid process

Token: SeDebugPrivilege 848 mobsync.exe
Token: SeDebugPrivilege 1096 NAPSTAT.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE

pid	process
1268	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	848	mobsync.exe
Token: SeDebugPrivilege	1096	NAPSTAT.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Untitled attachment 00032.exeExplorer.EXENAPSTAT.EXE

description	pid	process	target process
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1144 wrote to memory of 848	1144	Untitled attachment 00032.exe	mobsync.exe
PID 1268 wrote to memory of 1096	1268	Explorer.EXE	NAPSTAT.EXE
PID 1268 wrote to memory of 1096	1268	Explorer.EXE	NAPSTAT.EXE
PID 1268 wrote to memory of 1096	1268	Explorer.EXE	NAPSTAT.EXE
PID 1268 wrote to memory of 1096	1268	Explorer.EXE	NAPSTAT.EXE
PID 1096 wrote to memory of 1536	1096	NAPSTAT.EXE	cmd.exe
PID 1096 wrote to memory of 1536	1096	NAPSTAT.EXE	cmd.exe
PID 1096 wrote to memory of 1536	1096	NAPSTAT.EXE	cmd.exe
PID 1096 wrote to memory of 1536	1096	NAPSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268

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:1144

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:848

C:\Windows\SysWOW64\NAPSTAT.EXE
"C:\Windows\SysWOW64\NAPSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\mobsync.exe"
3⤵
PID:1536

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/848-65-0x00000000001B0000-0x00000000001C4000-memory.dmp

Filesize
80KB

Download
memory/848-62-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/848-64-0x0000000002110000-0x0000000002413000-memory.dmp

Filesize
3.0MB

Download
memory/848-56-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/848-57-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/848-59-0x0000000000000000-mapping.dmp

Download
memory/848-63-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1096-68-0x0000000000640000-0x0000000000686000-memory.dmp

Filesize
280KB

Download
memory/1096-67-0x0000000000000000-mapping.dmp

Download
memory/1096-69-0x00000000000C0000-0x00000000000EE000-memory.dmp

Filesize
184KB

Download
memory/1096-70-0x0000000001ED0000-0x00000000021D3000-memory.dmp

Filesize
3.0MB

Download
memory/1096-72-0x0000000001D90000-0x0000000001E23000-memory.dmp

Filesize
588KB

Download
memory/1144-55-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1144-54-0x0000000001CC1000-0x0000000001CD5000-memory.dmp

Filesize
80KB

Download
memory/1144-53-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/1268-73-0x0000000006B90000-0x0000000006D1D000-memory.dmp

Filesize
1.6MB

Download
memory/1268-66-0x0000000004A50000-0x0000000004B4A000-memory.dmp

Filesize
1000KB

Download
memory/1536-71-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads