formbook | 6c2cbc8b3f0efbabb281cb15fa0d08b2b805dddfa8028b285e795c6b6ecdda02

General

Target

PO102.exe
Size

368KB
MD5

544f97d08c44accf6feb140704686ad9
SHA1

198054b26aa1895ae9e6533a449d52dadbbcd0b5
SHA256

548f6937985adb04cce6bda4127f3d2af247feada21eda348d1d6a0e8dd7d2c7
SHA512

1acc9b9bae1f369d0e717bbd22e2861455b91e942398833004cdf4d8022230a144ea81126a094bb76f509b1281cacffa7e069b2f5c99e6b19621887b904164bc

Score

10^/10

formbook hnh evasion persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hnh

Decoy

stackingplans.info

landscapingcanberra.com

apxlegal.com

gzajs.com

senladvocaten.com

stephanieabella.com

indivmgtsvc.com

wildlife-botanicals.com

fingrfull.com

ustar-electric.com

timesharebefree.com

safefirstresponder.com

giliticketoperator.com

silverstarscents.com

4752condordrive.info

joomak.net

new-auto-news.com

ottodesign.store

kxg01.com

chrisoncreation.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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2212-137-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/4220-144-0x0000000000E00000-0x0000000000E2D000-memory.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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\5JQLXDNX_DB = "C:\\Program Files (x86)\\Cjnf\\zj-txthhrxw.exe"	cmmon32.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

PO102.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PO102.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PO102.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:

PO102.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PO102.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	PO102.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO102.exePO102.execmmon32.exe

description	pid	process	target process
PID 4884 set thread context of 2212	4884	PO102.exe	PO102.exe
PID 2212 set thread context of 3036	2212	PO102.exe	Explorer.EXE
PID 4220 set thread context of 3036	4220	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)\Cjnf\zj-txthhrxw.exe cmmon32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Cjnf\zj-txthhrxw.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 34 IoCs

Processes:

PO102.execmmon32.exe

pid	process
2212	PO102.exe
2212	PO102.exe
2212	PO102.exe
2212	PO102.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe
4220	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3036 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PO102.execmmon32.exe

pid process

2212 PO102.exe
2212 PO102.exe
2212 PO102.exe
4220 cmmon32.exe
4220 cmmon32.exe
4220 cmmon32.exe
4220 cmmon32.exe

pid	process
3036	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

PO102.execmmon32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2212	PO102.exe
Token: SeDebugPrivilege	4220	cmmon32.exe
Token: SeShutdownPrivilege	3036	Explorer.EXE
Token: SeCreatePagefilePrivilege	3036	Explorer.EXE
Token: SeShutdownPrivilege	3036	Explorer.EXE
Token: SeCreatePagefilePrivilege	3036	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

PO102.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 4884 wrote to memory of 2212	4884	PO102.exe	PO102.exe
PID 4884 wrote to memory of 2212	4884	PO102.exe	PO102.exe
PID 4884 wrote to memory of 2212	4884	PO102.exe	PO102.exe
PID 4884 wrote to memory of 2212	4884	PO102.exe	PO102.exe
PID 4884 wrote to memory of 2212	4884	PO102.exe	PO102.exe
PID 4884 wrote to memory of 2212	4884	PO102.exe	PO102.exe
PID 3036 wrote to memory of 4220	3036	Explorer.EXE	cmmon32.exe
PID 3036 wrote to memory of 4220	3036	Explorer.EXE	cmmon32.exe
PID 3036 wrote to memory of 4220	3036	Explorer.EXE	cmmon32.exe
PID 4220 wrote to memory of 228	4220	cmmon32.exe	cmd.exe
PID 4220 wrote to memory of 228	4220	cmmon32.exe	cmd.exe
PID 4220 wrote to memory of 228	4220	cmmon32.exe	cmd.exe
PID 4220 wrote to memory of 764	4220	cmmon32.exe	cmd.exe
PID 4220 wrote to memory of 764	4220	cmmon32.exe	cmd.exe
PID 4220 wrote to memory of 764	4220	cmmon32.exe	cmd.exe
PID 4220 wrote to memory of 540	4220	cmmon32.exe	Firefox.exe
PID 4220 wrote to memory of 540	4220	cmmon32.exe	Firefox.exe
PID 4220 wrote to memory of 540	4220	cmmon32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036

C:\Users\Admin\AppData\Local\Temp\PO102.exe
"C:\Users\Admin\AppData\Local\Temp\PO102.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4884

C:\Users\Admin\AppData\Local\Temp\PO102.exe
"C:\Users\Admin\AppData\Local\Temp\PO102.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2212

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:4220

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO102.exe"
3⤵
PID:228

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:764

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:540

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

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\924288DA\924logim.jpeg
Filesize
85KB

MD5
83aac3874703ab17076019c627098018

SHA1
6ad870e98f4695b9d171655aacf79682fd015ab5

SHA256
8e0d44a51988519910b6c25217f15d802b4522dd30ec8033a2da4b3f211c795b

SHA512
3bd96a6cf2efe7d02b631eed63037b1752976c894530a01d9d901ca6cd51450a696205567a520353f13a27f83fa1fccc561a2cfe44bd036880bce9ea6494ac49

Download Submit
C:\Users\Admin\AppData\Roaming\924288DA\924logrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\924288DA\924logrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\924288DA\924logri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\924288DA\924logrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/228-145-0x0000000000000000-mapping.dmp

Download
memory/764-149-0x0000000000000000-mapping.dmp

Download
memory/2212-136-0x0000000000000000-mapping.dmp

Download
memory/2212-139-0x0000000001500000-0x000000000184A000-memory.dmp

Filesize
3.3MB

Download
memory/2212-137-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2212-140-0x0000000001010000-0x0000000001024000-memory.dmp

Filesize
80KB

Download
memory/3036-141-0x0000000008C90000-0x0000000008DED000-memory.dmp

Filesize
1.4MB

Download
memory/3036-148-0x0000000008F20000-0x000000000903D000-memory.dmp

Filesize
1.1MB

Download
memory/4220-143-0x0000000000AA0000-0x0000000000AAC000-memory.dmp

Filesize
48KB

Download
memory/4220-146-0x0000000002C60000-0x0000000002FAA000-memory.dmp

Filesize
3.3MB

Download
memory/4220-147-0x0000000002B40000-0x0000000002BD3000-memory.dmp

Filesize
588KB

Download
memory/4220-144-0x0000000000E00000-0x0000000000E2D000-memory.dmp

Filesize
180KB

Download
memory/4220-142-0x0000000000000000-mapping.dmp

Download
memory/4884-130-0x0000000000260000-0x00000000002C0000-memory.dmp

Filesize
384KB

Download
memory/4884-135-0x0000000000930000-0x0000000000996000-memory.dmp

Filesize
408KB

Download
memory/4884-134-0x0000000004B10000-0x0000000004B1A000-memory.dmp

Filesize
40KB

Download
memory/4884-133-0x0000000004C70000-0x0000000004D0C000-memory.dmp

Filesize
624KB

Download
memory/4884-132-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/4884-131-0x0000000005220000-0x00000000057C4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads