formbook | c47b64bc3082c59d54077af047c2bcffd0d1859934927dc58ffc14b7ac52a1c8

General

Target

Requirement list.exe
Size

648KB
MD5

5dff100422e961e681af596f5307ba6d
SHA1

68735aa701b4be6df63b0fed0edec4800027836b
SHA256

def5dbf8e48af782ccb741ff6a1e1357af8dcafb701089b7f2d1c0919ae79f05
SHA512

07aab159926347c24b6513c7f34a6fd52804f144ca1ff549aea14105a6bcaea715d8258a684be5fb852e9f33f87b96b991503b826bdef77b1dd2de29ac892c95

Score

10^/10

formbook c38r persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c38r

Decoy

angleprotool.com

drilldownaccountancy.com

puur-bb.info

laptoprepairbrighton.net

mainstale.com

soketones.com

cohi.ltd

washntivow.com

datajagabon.online

solidlike.com

tapaznoncc.com

deadoralive.site

sharkapexdwal.com

tribun-news.com

67chain.com

paramorphous.net

chicagoxqa.com

301zaq.info

mansfieldpowdercoating.net

stopdizzy.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 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1644-63-0x0000000000070000-0x000000000009D000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1440 cmd.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1440	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\IX4DANPXO6 = "C:\\Program Files (x86)\\Nhh1lxj9\\update-z7.exe"	wscript.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Requirement list.exeRequirement list.exewscript.exe

description	pid	process	target process
PID 1228 set thread context of 964	1228	Requirement list.exe	Requirement list.exe
PID 964 set thread context of 1256	964	Requirement list.exe	Explorer.EXE
PID 1644 set thread context of 1256	1644	wscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Nhh1lxj9\update-z7.exe wscript.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nhh1lxj9\update-z7.exe	wscript.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

Requirement list.exeRequirement list.exewscript.exe

pid	process
1228	Requirement list.exe
964	Requirement list.exe
964	Requirement list.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

Requirement list.exeRequirement list.exewscript.exe

pid	process
1228	Requirement list.exe
964	Requirement list.exe
964	Requirement list.exe
964	Requirement list.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe
1644	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Requirement list.exewscript.exe

description pid process

Token: SeDebugPrivilege 964 Requirement list.exe
Token: SeDebugPrivilege 1644 wscript.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	964	Requirement list.exe
Token: SeDebugPrivilege	1644	wscript.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Requirement list.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 1228 wrote to memory of 964	1228	Requirement list.exe	Requirement list.exe
PID 1228 wrote to memory of 964	1228	Requirement list.exe	Requirement list.exe
PID 1228 wrote to memory of 964	1228	Requirement list.exe	Requirement list.exe
PID 1228 wrote to memory of 964	1228	Requirement list.exe	Requirement list.exe
PID 1256 wrote to memory of 1644	1256	Explorer.EXE	wscript.exe
PID 1256 wrote to memory of 1644	1256	Explorer.EXE	wscript.exe
PID 1256 wrote to memory of 1644	1256	Explorer.EXE	wscript.exe
PID 1256 wrote to memory of 1644	1256	Explorer.EXE	wscript.exe
PID 1644 wrote to memory of 1440	1644	wscript.exe	cmd.exe
PID 1644 wrote to memory of 1440	1644	wscript.exe	cmd.exe
PID 1644 wrote to memory of 1440	1644	wscript.exe	cmd.exe
PID 1644 wrote to memory of 1440	1644	wscript.exe	cmd.exe
PID 1644 wrote to memory of 1352	1644	wscript.exe	Firefox.exe
PID 1644 wrote to memory of 1352	1644	wscript.exe	Firefox.exe
PID 1644 wrote to memory of 1352	1644	wscript.exe	Firefox.exe
PID 1644 wrote to memory of 1352	1644	wscript.exe	Firefox.exe
PID 1644 wrote to memory of 1352	1644	wscript.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1256

C:\Users\Admin\AppData\Local\Temp\Requirement list.exe
"C:\Users\Admin\AppData\Local\Temp\Requirement list.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1228

C:\Users\Admin\AppData\Local\Temp\Requirement list.exe
"C:\Users\Admin\AppData\Local\Temp\Requirement list.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:964

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Requirement list.exe"
3⤵
- Deletes itself
PID:1440

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.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

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogim.jpeg
Filesize
63KB

MD5
bddefade2b966bb537d3cc7d19d693b4

SHA1
9ec0297f441e1c772d3d46944a4e2160f3522a91

SHA256
fca5a278fac742d4a718d8b8826d8de735ff66132d112ffe73690e80ffbb6035

SHA512
132dde354f75ce9a8acb248d7cf05aa2c3824022a589e902ff68c6a35a7168c4924a912507475ea02f859d9e8671923687b7f4f32cc2a29ce74d092272713ca2

Download Submit
C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogrv.ini
Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/964-55-0x000000000041E2E0-mapping.dmp

Download
memory/964-57-0x0000000000920000-0x0000000000C23000-memory.dmp

Filesize
3.0MB

Download
memory/964-58-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/1228-56-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1228-54-0x00000000751C1000-0x00000000751C3000-memory.dmp

Filesize
8KB

Download
memory/1256-59-0x00000000048C0000-0x0000000004A04000-memory.dmp

Filesize
1.3MB

Download
memory/1256-66-0x0000000004A90000-0x0000000004B4B000-memory.dmp

Filesize
748KB

Download
memory/1440-61-0x0000000000000000-mapping.dmp

Download
memory/1644-62-0x00000000009B0000-0x00000000009D6000-memory.dmp

Filesize
152KB

Download
memory/1644-65-0x0000000002280000-0x0000000002313000-memory.dmp

Filesize
588KB

Download
memory/1644-64-0x0000000001F70000-0x0000000002273000-memory.dmp

Filesize
3.0MB

Download
memory/1644-63-0x0000000000070000-0x000000000009D000-memory.dmp

Filesize
180KB

Download
memory/1644-60-0x0000000000000000-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