formbook | 8b516901a17ec32794de8c3577cba8cdcc9e85577a5d2e8a244cd202b5b01cc7

General

Target

Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe
Size

814KB
MD5

717297fec68e9172593a36a67549619f
SHA1

73e8625983cb413b91b608db347177584c680a22
SHA256

4d80ab79360b092bb5d8fa41d14388dffe5ef42839b6dbbf741f0ce5c3424d1e
SHA512

3f363a8b8971d843f7c158b3dc76de854895a76fe0e4a6dbb6b40b650d0cec760bea15179128e52fed044e2cee6964f2b70db5abf253e873feb327d6b99ba7df

Score

10^/10

formbook 3nop persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

3nop

C2

http://www.jakesplacebarbers.com/3nop/

Decoy

videohm.com

panache-rose.com

alnooncars-kw.com

trueblue2u.com

brussels-cafe.com

ip2c.net

influenzerr.com

rbcoq.com

zzful.com

drainthe.com

sumaholesson.com

cursosaprovados.com

genotecinc.com

dbrulhart.com

theapiarystudios.com

kensyu-kan.com

dkku88.com

tikhyper.com

aztecnort.com

homebrim.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
behavioral2/memory/3424-119-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/3424-121-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral2/memory/3588-128-0x0000000004F60000-0x0000000004F8E000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	chkdsk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\0HLDUFWXUH = "C:\\Program Files (x86)\\Zp6kxlhtp\\ppd_6ch.exe"	chkdsk.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

secinit.exechkdsk.exe

description	pid	process	target process
PID 3424 set thread context of 3008	3424	secinit.exe	Explorer.EXE
PID 3588 set thread context of 3008	3588	chkdsk.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

chkdsk.exe

description ioc process

File opened for modification C:\Program Files (x86)\Zp6kxlhtp\ppd_6ch.exe chkdsk.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Zp6kxlhtp\ppd_6ch.exe	chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

secinit.exechkdsk.exe

pid	process
3424	secinit.exe
3424	secinit.exe
3424	secinit.exe
3424	secinit.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe
3588	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

secinit.exechkdsk.exe

pid process

3424 secinit.exe
3424 secinit.exe
3424 secinit.exe
3588 chkdsk.exe
3588 chkdsk.exe
3588 chkdsk.exe
3588 chkdsk.exe

Suspicious use of AdjustPrivilegeToken 38 IoCs

Processes:

secinit.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3424	secinit.exe
Token: SeDebugPrivilege	3588	chkdsk.exe
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE

Suspicious use of SendNotifyMessage 22 IoCs

Processes:

Explorer.EXE

pid	process
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1644 wrote to memory of 3424	1644	Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe	secinit.exe
PID 1644 wrote to memory of 3424	1644	Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe	secinit.exe
PID 1644 wrote to memory of 3424	1644	Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe	secinit.exe
PID 1644 wrote to memory of 3424	1644	Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe	secinit.exe
PID 1644 wrote to memory of 3424	1644	Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe	secinit.exe
PID 1644 wrote to memory of 3424	1644	Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe	secinit.exe
PID 3008 wrote to memory of 3588	3008	Explorer.EXE	chkdsk.exe
PID 3008 wrote to memory of 3588	3008	Explorer.EXE	chkdsk.exe
PID 3008 wrote to memory of 3588	3008	Explorer.EXE	chkdsk.exe
PID 3588 wrote to memory of 2868	3588	chkdsk.exe	cmd.exe
PID 3588 wrote to memory of 2868	3588	chkdsk.exe	cmd.exe
PID 3588 wrote to memory of 2868	3588	chkdsk.exe	cmd.exe
PID 3588 wrote to memory of 2556	3588	chkdsk.exe	Firefox.exe
PID 3588 wrote to memory of 2556	3588	chkdsk.exe	Firefox.exe
PID 3588 wrote to memory of 2556	3588	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3008

C:\Users\Admin\AppData\Local\Temp\Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe
"C:\Users\Admin\AppData\Local\Temp\Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\secinit.exe
C:\Windows\System32\secinit.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3424

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\secinit.exe"
3⤵
PID:2868

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2556

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

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\-65A6372\-65logim.jpeg
MD5
7566dc13507c3f4e27ee02ef5c6283ab

SHA1
4971259cfba6c507110ca20f41337ca17554b707

SHA256
83b1ab3d8eec16934d15e0bd7f0105ce15c215ecb4367266cbdaad0395da9663

SHA512
c83975fa0dafb95be0336e40c2ef7de7e6e0582afdcc261432e44d0b403575e752caa24c1427454b9324e81a7ff3619d5e81f2444dab6b49ffca8f911cd659e2

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrf.ini
MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logri.ini
MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrv.ini
MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1644-115-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2556-136-0x00007FF64D710000-0x00007FF64D7A3000-memory.dmp

Filesize
588KB

Download
memory/2556-137-0x000001F361270000-0x000001F3613B1000-memory.dmp

Filesize
1.3MB

Download
memory/2556-135-0x0000000000000000-mapping.dmp

Download
memory/2868-126-0x0000000000000000-mapping.dmp

Download
memory/3008-124-0x0000000008600000-0x000000000875A000-memory.dmp

Filesize
1.4MB

Download
memory/3008-131-0x0000000006680000-0x0000000006726000-memory.dmp

Filesize
664KB

Download
memory/3424-123-0x0000000003110000-0x0000000003124000-memory.dmp

Filesize
80KB

Download
memory/3424-122-0x0000000004C90000-0x0000000004FB0000-memory.dmp

Filesize
3.1MB

Download
memory/3424-120-0x0000000000C50000-0x0000000000C51000-memory.dmp

Filesize
4KB

Download
memory/3424-121-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/3424-119-0x0000000000000000-mapping.dmp

Download
memory/3588-128-0x0000000004F60000-0x0000000004F8E000-memory.dmp

Filesize
184KB

Download
memory/3588-129-0x0000000005200000-0x000000000534A000-memory.dmp

Filesize
1.3MB

Download
memory/3588-130-0x0000000005700000-0x0000000005793000-memory.dmp

Filesize
588KB

Download
memory/3588-127-0x0000000000010000-0x000000000001A000-memory.dmp

Filesize
40KB

Download
memory/3588-125-0x0000000000000000-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