formbook | 1d65e497a5fd1c02c83a04fba5cd07130ac17bda7b476ee70a0bf8202eed4be5

General

Target

muestras de productos.exe
Size

544KB
MD5

085e4e06334e8dbab10d45a5dd96c72e
SHA1

b665738b4fb841dd02699df85f6ba4cb7b2ad2b9
SHA256

9b9931b133a5a15ee73de2ffd8b6f2f7b80e834cf4a3cf17f030c479b21abf9b
SHA512

c9b5b9ecffc09a2f11a866c6a0264e3687495bda69c4a728a113535b1f9fa008f944eb4d1a50601423ccdb8e329ea6ece9db26e108268efbad1537de6976057a

Score

10^/10

formbook n7ak persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

audereventur.com

huro14.com

wwwjinsha155.com

antiquevendor.com

samuraisoulfood.net

traffic4updates.download

hypersarv.com

rapport-happy-wedding.com

rokutechnosupport.online

allworljob.com

hanaleedossmann.com

kauai-marathon.com

bepbosch.com

kangen-international.com

zoneshopemenowz.com

belviderewrestling.com

ipllink.com

sellingforcreators.com

wwwswty6655.com

qtumboa.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/1300-130-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/1300-131-0x0000000010410000-0x000000001043D000-memory.dmp	formbook
behavioral2/memory/1300-132-0x0000000010410000-0x000000001043D000-memory.dmp	formbook
behavioral2/memory/4268-138-0x0000000000690000-0x00000000006BD000-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:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	NETSTAT.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\FTWTU = "C:\\Program Files (x86)\\internet explorer\\ieinstal.exe"	NETSTAT.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	NETSTAT.EXE

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 2 IoCs

Processes:

ieinstal.exeNETSTAT.EXE

description	pid	process	target process
PID 1300 set thread context of 1880	1300	ieinstal.exe	Explorer.EXE
PID 4268 set thread context of 1880	4268	NETSTAT.EXE	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

4268 NETSTAT.EXE

pid	process
4268	NETSTAT.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE

Modifies registry class 3 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

ieinstal.exeNETSTAT.EXE

pid	process
1300	ieinstal.exe
1300	ieinstal.exe
1300	ieinstal.exe
1300	ieinstal.exe
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE
4268	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1880 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ieinstal.exeNETSTAT.EXE

pid process

1300 ieinstal.exe
1300 ieinstal.exe
1300 ieinstal.exe
4268 NETSTAT.EXE
4268 NETSTAT.EXE
4268 NETSTAT.EXE
4268 NETSTAT.EXE

pid	process
1880	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 28 IoCs

Processes:

ieinstal.exeNETSTAT.EXEExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1300	ieinstal.exe
Token: SeDebugPrivilege	4268	NETSTAT.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE
Token: SeShutdownPrivilege	1880	Explorer.EXE
Token: SeCreatePagefilePrivilege	1880	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1880 Explorer.EXE
1880 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

1880 Explorer.EXE

pid	process
1880	Explorer.EXE
1880	Explorer.EXE

pid	process
1880	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

muestras de productos.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 3000 wrote to memory of 1300	3000	muestras de productos.exe	ieinstal.exe
PID 3000 wrote to memory of 1300	3000	muestras de productos.exe	ieinstal.exe
PID 3000 wrote to memory of 1300	3000	muestras de productos.exe	ieinstal.exe
PID 3000 wrote to memory of 1300	3000	muestras de productos.exe	ieinstal.exe
PID 3000 wrote to memory of 1300	3000	muestras de productos.exe	ieinstal.exe
PID 3000 wrote to memory of 1300	3000	muestras de productos.exe	ieinstal.exe
PID 1880 wrote to memory of 4268	1880	Explorer.EXE	NETSTAT.EXE
PID 1880 wrote to memory of 4268	1880	Explorer.EXE	NETSTAT.EXE
PID 1880 wrote to memory of 4268	1880	Explorer.EXE	NETSTAT.EXE
PID 4268 wrote to memory of 3532	4268	NETSTAT.EXE	cmd.exe
PID 4268 wrote to memory of 3532	4268	NETSTAT.EXE	cmd.exe
PID 4268 wrote to memory of 3532	4268	NETSTAT.EXE	cmd.exe
PID 4268 wrote to memory of 3876	4268	NETSTAT.EXE	Firefox.exe
PID 4268 wrote to memory of 3876	4268	NETSTAT.EXE	Firefox.exe
PID 4268 wrote to memory of 3876	4268	NETSTAT.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 UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1880

C:\Users\Admin\AppData\Local\Temp\muestras de productos.exe
"C:\Users\Admin\AppData\Local\Temp\muestras de productos.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3000

C:\Program Files (x86)\internet explorer\ieinstal.exe
"C:\Program Files (x86)\internet explorer\ieinstal.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1300

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4268

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:3532

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3876

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
1⤵
PID:3368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Web Service

1

T1102

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\Roaming\94O2R65S\94Ologim.jpeg
Filesize
82KB

MD5
8f0d982194c839fbded96455be42e18d

SHA1
5dc28ac8311236177334d441c34cbdf2f93bc08a

SHA256
ae59778b6c8ccb5ee1e8bbf2cc71031885ee32a07a0db63f50fcdf1e6307178f

SHA512
cf3ffab64adc3646eabb95e96ea0a40fc727c684c3ca41e708d1da44c4f4d0f9bcef8c0544ff305fe0602c9d374ad83d9b0c2f22159bc032b4bc8adbc4d0c919

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1300-134-0x0000000000930000-0x0000000000944000-memory.dmp

Filesize
80KB

Download
memory/1300-130-0x0000000000000000-mapping.dmp

Download
memory/1300-133-0x0000000002590000-0x00000000028DA000-memory.dmp

Filesize
3.3MB

Download
memory/1300-132-0x0000000010410000-0x000000001043D000-memory.dmp

Filesize
180KB

Download
memory/1300-131-0x0000000010410000-0x000000001043D000-memory.dmp

Filesize
180KB

Download
memory/1880-135-0x0000000002F30000-0x000000000301E000-memory.dmp

Filesize
952KB

Download
memory/1880-143-0x00000000086A0000-0x00000000087BD000-memory.dmp

Filesize
1.1MB

Download
memory/3532-140-0x0000000000000000-mapping.dmp

Download
memory/4268-137-0x0000000000C70000-0x0000000000C7B000-memory.dmp

Filesize
44KB

Download
memory/4268-142-0x0000000000C80000-0x0000000000D13000-memory.dmp

Filesize
588KB

Download
memory/4268-139-0x0000000000FE0000-0x000000000132A000-memory.dmp

Filesize
3.3MB

Download
memory/4268-138-0x0000000000690000-0x00000000006BD000-memory.dmp

Filesize
180KB

Download
memory/4268-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads