formbook | bc5808e90a1540e8f2523f7f0e072d7d91d527e68cd50e4caaa98cbbe1988819

General

Target

shipping documents, INV+BL.exe
Size

430KB
MD5

528803eb79a155fc433c390a194ae344
SHA1

3e85abf112dbe5d5cb3b36f82cb5e5aba4f54757
SHA256

5e1663a897c64460d68fdf6848b63f589680e75f4d935258a7862b9d1ff617b1
SHA512

b3a29219e6287103d6443ef39891d29b9f95cb72c6b39537c576d7f47fcb53a910fc6d9524a8f90fe26fc42674dedf59b3d39859f0636ed578f16f4fc5a3140d

Score

10^/10

formbook otn persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

otn

Decoy

thewoodwideweb.net

broadconnectionpm.com

tuzlametro.net

vjpqdk.info

vietnamtimetravel.com

notice-close-n217.online

verif22-mail999-pymts76.com

bestgreenhouseplan.com

brangain.top

cukaapelbragg.com

stileincucina.com

veloflambe.com

virtualsupportservicesllc.com

smpl.site

mezo.ltd

incidenciasarty.com

everglamp.com

theflowerfarmplanner.com

oasis-base.net

jnrhsh.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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4380-138-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/4380-140-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/3532-146-0x00000000005C0000-0x00000000005ED000-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:

cscript.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\QNVHXH_H1 = "C:\\Program Files (x86)\\Bu4p0\\1bchbxrrixp.exe"	cscript.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

shipping documents, INV+BL.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	shipping documents, INV+BL.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

Suspicious use of SetThreadContext 3 IoCs

Processes:

shipping documents, INV+BL.exeshipping documents, INV+BL.execscript.exe

description	pid	process	target process
PID 5096 set thread context of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 4380 set thread context of 372	4380	shipping documents, INV+BL.exe	Explorer.EXE
PID 3532 set thread context of 372	3532	cscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Bu4p0\1bchbxrrixp.exe cscript.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4164 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Bu4p0\1bchbxrrixp.exe	cscript.exe

pid	process
4164	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

Processes:

shipping documents, INV+BL.exeshipping documents, INV+BL.execscript.exe

pid	process
5096	shipping documents, INV+BL.exe
5096	shipping documents, INV+BL.exe
5096	shipping documents, INV+BL.exe
4380	shipping documents, INV+BL.exe
4380	shipping documents, INV+BL.exe
4380	shipping documents, INV+BL.exe
4380	shipping documents, INV+BL.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

372 Explorer.EXE

pid	process
372	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

shipping documents, INV+BL.execscript.exe

pid	process
4380	shipping documents, INV+BL.exe
4380	shipping documents, INV+BL.exe
4380	shipping documents, INV+BL.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe
3532	cscript.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

shipping documents, INV+BL.exeshipping documents, INV+BL.execscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	5096	shipping documents, INV+BL.exe
Token: SeDebugPrivilege	4380	shipping documents, INV+BL.exe
Token: SeDebugPrivilege	3532	cscript.exe
Token: SeShutdownPrivilege	372	Explorer.EXE
Token: SeCreatePagefilePrivilege	372	Explorer.EXE
Token: SeShutdownPrivilege	372	Explorer.EXE
Token: SeCreatePagefilePrivilege	372	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

shipping documents, INV+BL.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 5096 wrote to memory of 4164	5096	shipping documents, INV+BL.exe	schtasks.exe
PID 5096 wrote to memory of 4164	5096	shipping documents, INV+BL.exe	schtasks.exe
PID 5096 wrote to memory of 4164	5096	shipping documents, INV+BL.exe	schtasks.exe
PID 5096 wrote to memory of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 5096 wrote to memory of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 5096 wrote to memory of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 5096 wrote to memory of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 5096 wrote to memory of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 5096 wrote to memory of 4380	5096	shipping documents, INV+BL.exe	shipping documents, INV+BL.exe
PID 372 wrote to memory of 3532	372	Explorer.EXE	cscript.exe
PID 372 wrote to memory of 3532	372	Explorer.EXE	cscript.exe
PID 372 wrote to memory of 3532	372	Explorer.EXE	cscript.exe
PID 3532 wrote to memory of 3260	3532	cscript.exe	cmd.exe
PID 3532 wrote to memory of 3260	3532	cscript.exe	cmd.exe
PID 3532 wrote to memory of 3260	3532	cscript.exe	cmd.exe
PID 3532 wrote to memory of 4868	3532	cscript.exe	cmd.exe
PID 3532 wrote to memory of 4868	3532	cscript.exe	cmd.exe
PID 3532 wrote to memory of 4868	3532	cscript.exe	cmd.exe
PID 3532 wrote to memory of 1128	3532	cscript.exe	Firefox.exe
PID 3532 wrote to memory of 1128	3532	cscript.exe	Firefox.exe
PID 3532 wrote to memory of 1128	3532	cscript.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

cscript.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer cscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	cscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372

C:\Users\Admin\AppData\Local\Temp\shipping documents, INV+BL.exe
"C:\Users\Admin\AppData\Local\Temp\shipping documents, INV+BL.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5096

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp94AE.tmp"
3⤵
- Creates scheduled task(s)
PID:4164

C:\Users\Admin\AppData\Local\Temp\shipping documents, INV+BL.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4380

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Adds policy 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
- System policy modification
PID:3532

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\shipping documents, INV+BL.exe"
3⤵
PID:3260

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4868

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1128

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp94AE.tmp
Filesize
1KB

MD5
f0194d140d5655b77acfe5c633086ba1

SHA1
8cd43646855f664a0ebcff81adb01c0681a9363e

SHA256
31fb428c38ed87cd3c15ca9020c0dd95120ff487e25a9886be7acf1c7c9c5e46

SHA512
abf16211ad68556400043b1a50b9753bbcdb25e433a1c7bc982afcd3c9bfa48207f063f90130d1f5fe1eb8c335ef06159d9fe740cff7f9e0cb6bca6d8e422a14

Download Submit
C:\Users\Admin\AppData\Roaming\-Q60BA05\-Q6logim.jpeg
Filesize
74KB

MD5
d4963275b9a510619a4cfdd35d3467be

SHA1
abce73f388319077a55c7a3c777d94ccd6e3f2e6

SHA256
73a4646ad5153f45c3cfe1b5100453675666b4327c1eb80f2b25ea5827526c1a

SHA512
fe63ee7f90a5febde0a0da2d6ecc5695838b35e4e32fe37f48f83103da34ec08f0507cc7ba1097d745872c0c549e23f8f2c2dc51ea77972530da89ebcd0537af

Download Submit
C:\Users\Admin\AppData\Roaming\-Q60BA05\-Q6logrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\-Q60BA05\-Q6logrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\-Q60BA05\-Q6logri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\-Q60BA05\-Q6logrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/372-143-0x0000000008B00000-0x0000000008C67000-memory.dmp

Filesize
1.4MB

Download
memory/372-150-0x0000000003330000-0x0000000003411000-memory.dmp

Filesize
900KB

Download
memory/3260-148-0x0000000000000000-mapping.dmp

Download
memory/3532-146-0x00000000005C0000-0x00000000005ED000-memory.dmp

Filesize
180KB

Download
memory/3532-144-0x0000000000000000-mapping.dmp

Download
memory/3532-145-0x00000000001E0000-0x0000000000207000-memory.dmp

Filesize
156KB

Download
memory/3532-147-0x00000000029B0000-0x0000000002CFA000-memory.dmp

Filesize
3.3MB

Download
memory/3532-149-0x0000000002750000-0x00000000027E3000-memory.dmp

Filesize
588KB

Download
memory/4164-135-0x0000000000000000-mapping.dmp

Download
memory/4380-142-0x00000000017A0000-0x00000000017B4000-memory.dmp

Filesize
80KB

Download
memory/4380-137-0x0000000000000000-mapping.dmp

Download
memory/4380-141-0x00000000017D0000-0x0000000001B1A000-memory.dmp

Filesize
3.3MB

Download
memory/4380-140-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4380-138-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4868-151-0x0000000000000000-mapping.dmp

Download
memory/5096-130-0x00000000006E0000-0x0000000000752000-memory.dmp

Filesize
456KB

Download
memory/5096-134-0x00000000089C0000-0x0000000008A5C000-memory.dmp

Filesize
624KB

Download
memory/5096-133-0x0000000005120000-0x000000000512A000-memory.dmp

Filesize
40KB

Download
memory/5096-132-0x0000000005190000-0x0000000005222000-memory.dmp

Filesize
584KB

Download
memory/5096-131-0x00000000056A0000-0x0000000005C44000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads