formbook | 02b4d21a4dcfe793027cc1be224d94f5334fff82ac52248a3e44aba68666978d

General

Target

new.exe
Size

268KB
MD5

a88e4bd1e3507132fcdd28f38a6751f7
SHA1

26e3eed8ee5b0e18cc401ed88b73b287c8ad8de7
SHA256

7527530d28c88ea0850926a24ba050a4a77983fb8271309c749ba43e7b10c695
SHA512

657b6c77d0d72945293978df4dc4bae3fb722978be866ddfe0ceb3fa6c604ed9c27ef516a77f159cc98dd577fb4a042fcf8c9406912f7985a8d5e8b3587682ae

Score

10^/10

formbook uw7 persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

uw7

Decoy

casa-miquela.com

phongcach8.com

tvdefrance.net

vipeorfresh.com

litsp.net

9dj2-ycg.biz

3157allen.com

newidea.site

merchandiserod.com

blueictbd.com

151manbetx.com

roehallwedding.com

huaruiju.com

sparkjoywithshannon.com

massif.biz

ochrebridge.com

r6t9.com

fuuvomoogmusic.net

perfectpawsdoggyboutique.com

nst-nri.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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/788-136-0x00000000054C0000-0x00000000054EA000-memory.dmp	formbook
behavioral2/memory/1920-143-0x0000000000A40000-0x0000000000A6A000-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:

cmmon32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cmmon32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ZFZLG2EPTHR = "C:\\Program Files (x86)\\Jzzktq0\\j6c4plirmpd.exe"	cmmon32.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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

new.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	new.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	new.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

new.execmmon32.exe

description	pid	process	target process
PID 788 set thread context of 2156	788	new.exe	Explorer.EXE
PID 1920 set thread context of 2156	1920	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)\Jzzktq0\j6c4plirmpd.exe cmmon32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Jzzktq0\j6c4plirmpd.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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

new.execmmon32.exe

pid	process
788	new.exe
788	new.exe
788	new.exe
788	new.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe
1920	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2156 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

new.execmmon32.exe

pid process

788 new.exe
788 new.exe
788 new.exe
1920 cmmon32.exe
1920 cmmon32.exe

pid	process
2156	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

new.execmmon32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	788	new.exe
Token: SeDebugPrivilege	1920	cmmon32.exe
Token: SeShutdownPrivilege	2156	Explorer.EXE
Token: SeCreatePagefilePrivilege	2156	Explorer.EXE
Token: SeShutdownPrivilege	2156	Explorer.EXE
Token: SeCreatePagefilePrivilege	2156	Explorer.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Explorer.EXEcmmon32.exe

description	pid	process	target process
PID 2156 wrote to memory of 1920	2156	Explorer.EXE	cmmon32.exe
PID 2156 wrote to memory of 1920	2156	Explorer.EXE	cmmon32.exe
PID 2156 wrote to memory of 1920	2156	Explorer.EXE	cmmon32.exe
PID 1920 wrote to memory of 2620	1920	cmmon32.exe	cmd.exe
PID 1920 wrote to memory of 2620	1920	cmmon32.exe	cmd.exe
PID 1920 wrote to memory of 2620	1920	cmmon32.exe	cmd.exe
PID 1920 wrote to memory of 1440	1920	cmmon32.exe	cmd.exe
PID 1920 wrote to memory of 1440	1920	cmmon32.exe	cmd.exe
PID 1920 wrote to memory of 1440	1920	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:2156

C:\Users\Admin\AppData\Local\Temp\new.exe
"C:\Users\Admin\AppData\Local\Temp\new.exe"
2⤵
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:788

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.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
PID:1920

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\new.exe"
3⤵
PID:2620

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:1440

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

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

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\0MR60A-F\0MRlogim.jpeg
Filesize
84KB

MD5
2e001e9843ded2e4561dad6fc19cfe25

SHA1
7bb7d1f593261717836464ebeb53735b965fe29d

SHA256
95ba51a2f192c9d9d3d9d535e02629404b54ca0d871f5ec66d15d6e0f7208fa2

SHA512
54788ec9d7435a4cf0c10f923c8ca5db802894ed35675fae6965d5700d5e375b7489780f6a83be48ae3d13894fe68bb7a82f11d690c98009c7c8f2a572b65e0a

Download Submit
C:\Users\Admin\AppData\Roaming\0MR60A-F\0MRlogrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\0MR60A-F\0MRlogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\0MR60A-F\0MRlogrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/788-138-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/788-134-0x0000000005870000-0x0000000005E14000-memory.dmp

Filesize
5.6MB

Download
memory/788-135-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/788-136-0x00000000054C0000-0x00000000054EA000-memory.dmp

Filesize
168KB

Download
memory/788-137-0x0000000005E20000-0x000000000616A000-memory.dmp

Filesize
3.3MB

Download
memory/788-133-0x0000000000820000-0x0000000000868000-memory.dmp

Filesize
288KB

Download
memory/1440-147-0x0000000000000000-mapping.dmp

Download
memory/1920-142-0x0000000000A70000-0x0000000000A7C000-memory.dmp

Filesize
48KB

Download
memory/1920-145-0x00000000027F0000-0x0000000002883000-memory.dmp

Filesize
588KB

Download
memory/1920-144-0x0000000002A50000-0x0000000002D9A000-memory.dmp

Filesize
3.3MB

Download
memory/1920-143-0x0000000000A40000-0x0000000000A6A000-memory.dmp

Filesize
168KB

Download
memory/1920-140-0x0000000000000000-mapping.dmp

Download
memory/2156-146-0x0000000008390000-0x0000000008516000-memory.dmp

Filesize
1.5MB

Download
memory/2156-139-0x0000000007DC0000-0x0000000007F38000-memory.dmp

Filesize
1.5MB

Download
memory/2620-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads