formbook | 3c02bb7b44aed296562d9cd1b8a999438ebe46129a9a9eed79dc6e86a1581048

General

Target

R220917549.exe
Size

923KB
MD5

65e707bd6d53922eed2f27b35bd5355a
SHA1

8e2cb2687357567045584ed5cb36c11cc928f4a4
SHA256

ca2474c82643817c50106479f991ae282b9bb24fde98721dc5f99fe9a5eb3300
SHA512

606f8a9fab4b19fc43ed233f62fcefc3758e1e8fd6358b9fecbd8a3e3a43027ddded905ad2fc185eec7c3e14c1ad563ce007cb35f61797846807757b2ac1447a

Score

10^/10

formbook crt persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

crt

Decoy

breyononline.com

bruczko.com

5150pe.com

baltonol.com

turlkeybellflowers.com

redoxparcaitalyopposites.win

greenbox.store

aftoes.com

balipotret.com

wolfgate.pictures

330121.com

artofreggae.com

sharing-hands.info

qqdada.com

amzbeast.com

qingtaitalk.com

eldridgebrook.com

yuanyuanjuan.com

cincysteamspecialist.com

kentputtingacademy.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 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/5004-140-0x0000000000B40000-0x0000000000B6A000-memory.dmp	formbook

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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmmon32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RTLLGZIXT = "C:\\Program Files (x86)\\X3fk\\ix22drdfj.exe"	cmmon32.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

R220917549.exeR220917549.execmmon32.exe

description	pid	process	target process
PID 2772 set thread context of 3088	2772	R220917549.exe	R220917549.exe
PID 3088 set thread context of 3272	3088	R220917549.exe	Explorer.EXE
PID 3088 set thread context of 3272	3088	R220917549.exe	Explorer.EXE
PID 5004 set thread context of 3272	5004	cmmon32.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmmon32.exe

description ioc process

File opened for modification C:\Program Files (x86)\X3fk\ix22drdfj.exe cmmon32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\X3fk\ix22drdfj.exe	cmmon32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

R220917549.exeR220917549.execmmon32.exe

pid	process
2772	R220917549.exe
2772	R220917549.exe
3088	R220917549.exe
3088	R220917549.exe
3088	R220917549.exe
3088	R220917549.exe
3088	R220917549.exe
3088	R220917549.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe
5004	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3272 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

R220917549.exeR220917549.execmmon32.exe

pid process

2772 R220917549.exe
3088 R220917549.exe
3088 R220917549.exe
3088 R220917549.exe
3088 R220917549.exe
5004 cmmon32.exe
5004 cmmon32.exe

pid	process
3272	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

R220917549.execmmon32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3088	R220917549.exe
Token: SeDebugPrivilege	5004	cmmon32.exe
Token: SeShutdownPrivilege	3272	Explorer.EXE
Token: SeCreatePagefilePrivilege	3272	Explorer.EXE
Token: SeShutdownPrivilege	3272	Explorer.EXE
Token: SeCreatePagefilePrivilege	3272	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

R220917549.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 2772 wrote to memory of 3088	2772	R220917549.exe	R220917549.exe
PID 2772 wrote to memory of 3088	2772	R220917549.exe	R220917549.exe
PID 2772 wrote to memory of 3088	2772	R220917549.exe	R220917549.exe
PID 3272 wrote to memory of 5004	3272	Explorer.EXE	cmmon32.exe
PID 3272 wrote to memory of 5004	3272	Explorer.EXE	cmmon32.exe
PID 3272 wrote to memory of 5004	3272	Explorer.EXE	cmmon32.exe
PID 5004 wrote to memory of 1876	5004	cmmon32.exe	cmd.exe
PID 5004 wrote to memory of 1876	5004	cmmon32.exe	cmd.exe
PID 5004 wrote to memory of 1876	5004	cmmon32.exe	cmd.exe
PID 5004 wrote to memory of 1416	5004	cmmon32.exe	cmd.exe
PID 5004 wrote to memory of 1416	5004	cmmon32.exe	cmd.exe
PID 5004 wrote to memory of 1416	5004	cmmon32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3272

C:\Users\Admin\AppData\Local\Temp\R220917549.exe
"C:\Users\Admin\AppData\Local\Temp\R220917549.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2772

C:\Users\Admin\AppData\Local\Temp\R220917549.exe
"C:\Users\Admin\AppData\Local\Temp\R220917549.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3088

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:4532

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.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:5004

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\R220917549.exe"
3⤵
PID:1876

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:1416

Network

MITRE ATT&CK Enterprise 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

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

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C:\Users\Admin\AppData\Roaming\24AO8R8R\24Alogim.jpeg
Filesize
81KB

MD5
b399825c41c1b5dfb00e9ae20e817a74

SHA1
ba563b5edc6b186ffe19040ea010422dac088139

SHA256
5db8503c66d351872e7c2f8468db03b6d739260e271d95ef4f7bef41064e74b1

SHA512
b8649932d813fbd8f80e225e12f84b1bd2a6a7ef3fa46c5fbed824c77abf7b9312616de3d54aa6d40c1ea03da02c507ffe681344dd27d8a9f7dec2c61c99826c

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C:\Users\Admin\AppData\Roaming\24AO8R8R\24Alogrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

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C:\Users\Admin\AppData\Roaming\24AO8R8R\24Alogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\24AO8R8R\24Alogrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

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memory/1416-144-0x0000000000000000-mapping.dmp

Download
memory/1876-138-0x0000000000000000-mapping.dmp

Download
memory/2772-131-0x0000000000400000-0x00000000004ED000-memory.dmp

Filesize
948KB

Download
memory/3088-135-0x0000000000E40000-0x0000000000E54000-memory.dmp

Filesize
80KB

Download
memory/3088-130-0x0000000000000000-mapping.dmp

Download
memory/3088-133-0x0000000000DE0000-0x0000000000DF4000-memory.dmp

Filesize
80KB

Download
memory/3088-132-0x00000000009D0000-0x0000000000D1A000-memory.dmp

Filesize
3.3MB

Download
memory/3272-143-0x0000000002CE0000-0x0000000002D9B000-memory.dmp

Filesize
748KB

Download
memory/3272-136-0x0000000008790000-0x000000000892F000-memory.dmp

Filesize
1.6MB

Download
memory/3272-134-0x0000000002BD0000-0x0000000002C86000-memory.dmp

Filesize
728KB

Download
memory/5004-139-0x0000000000F20000-0x0000000000F2C000-memory.dmp

Filesize
48KB

Download
memory/5004-141-0x0000000002D60000-0x00000000030AA000-memory.dmp

Filesize
3.3MB

Download
memory/5004-140-0x0000000000B40000-0x0000000000B6A000-memory.dmp

Filesize
168KB

Download
memory/5004-142-0x0000000002C10000-0x0000000002CA3000-memory.dmp

Filesize
588KB

Download
memory/5004-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads