formbook | 2f2c77d7bcd0fbf80b63b7b2e60b8192130c285bce2f946f021dee83954254e6

General

Target

f97e137e_by_Libranalysis.exe
Size

804KB
MD5

f97e137e249bb393fd88b7dec1ddf9a2
SHA1

09e3865d681b8670aa9a1ef184c06ca40927d94c
SHA256

2f2c77d7bcd0fbf80b63b7b2e60b8192130c285bce2f946f021dee83954254e6
SHA512

de554f995d7d94be652f0e5eb430745fa1329ed06d216b0b107c330831155d737fde91bd74835c3c6bdbf713fa16744fc555a922722886f5aaeb4d65fb0fa014

Score

10^/10

formbook persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.joomlas123.info/3nop/

Decoy

bakecakesandmore.com

shenglisuoye.com

chinapopfactory.com

ynlrhd.com

liqourforyou.com

leonqamil.com

meccafon.com

online-marketing-strategie.biz

rbfxi.com

frseyb.info

leyu91.com

hotsmail.today

beepot.tech

dunaemmetmobility.com

sixpenceworkshop.com

incrediblefavorcoaching.com

pofo.info

yanshudaili.com

yellowbrickwedding.com

paintpartyblueprint.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2296-119-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/2296-121-0x0000000010410000-0x000000001043D000-memory.dmp	formbook
behavioral2/memory/3368-127-0x0000000002BB0000-0x0000000002BDD000-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:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YP28BZLPF = "C:\\Program Files (x86)\\Qc8tpf\\gh2hwtbp9rsd.exe"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	rundll32.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 2 IoCs

Processes:

DpiScaling.exerundll32.exe

description	pid	process	target process
PID 2296 set thread context of 3000	2296	DpiScaling.exe	Explorer.EXE
PID 3368 set thread context of 3000	3368	rundll32.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Program Files (x86)\Qc8tpf\gh2hwtbp9rsd.exe rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Qc8tpf\gh2hwtbp9rsd.exe	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

DpiScaling.exerundll32.exe

pid	process
2296	DpiScaling.exe
2296	DpiScaling.exe
2296	DpiScaling.exe
2296	DpiScaling.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3000 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

DpiScaling.exerundll32.exe

pid process

2296 DpiScaling.exe
2296 DpiScaling.exe
2296 DpiScaling.exe
3368 rundll32.exe
3368 rundll32.exe
3368 rundll32.exe
3368 rundll32.exe

pid	process
3000	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

DpiScaling.exeExplorer.EXErundll32.exe

description	pid	process
Token: SeDebugPrivilege	2296	DpiScaling.exe
Token: SeShutdownPrivilege	3000	Explorer.EXE
Token: SeCreatePagefilePrivilege	3000	Explorer.EXE
Token: SeDebugPrivilege	3368	rundll32.exe
Token: SeShutdownPrivilege	3000	Explorer.EXE
Token: SeCreatePagefilePrivilege	3000	Explorer.EXE
Token: SeShutdownPrivilege	3000	Explorer.EXE
Token: SeCreatePagefilePrivilege	3000	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3000 Explorer.EXE

pid	process
3000	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f97e137e_by_Libranalysis.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 3932 wrote to memory of 2296	3932	f97e137e_by_Libranalysis.exe	DpiScaling.exe
PID 3932 wrote to memory of 2296	3932	f97e137e_by_Libranalysis.exe	DpiScaling.exe
PID 3932 wrote to memory of 2296	3932	f97e137e_by_Libranalysis.exe	DpiScaling.exe
PID 3932 wrote to memory of 2296	3932	f97e137e_by_Libranalysis.exe	DpiScaling.exe
PID 3932 wrote to memory of 2296	3932	f97e137e_by_Libranalysis.exe	DpiScaling.exe
PID 3932 wrote to memory of 2296	3932	f97e137e_by_Libranalysis.exe	DpiScaling.exe
PID 3000 wrote to memory of 3368	3000	Explorer.EXE	rundll32.exe
PID 3000 wrote to memory of 3368	3000	Explorer.EXE	rundll32.exe
PID 3000 wrote to memory of 3368	3000	Explorer.EXE	rundll32.exe
PID 3368 wrote to memory of 1328	3368	rundll32.exe	cmd.exe
PID 3368 wrote to memory of 1328	3368	rundll32.exe	cmd.exe
PID 3368 wrote to memory of 1328	3368	rundll32.exe	cmd.exe
PID 3368 wrote to memory of 2308	3368	rundll32.exe	Firefox.exe
PID 3368 wrote to memory of 2308	3368	rundll32.exe	Firefox.exe
PID 3368 wrote to memory of 2308	3368	rundll32.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	rundll32.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3000

C:\Users\Admin\AppData\Local\Temp\f97e137e_by_Libranalysis.exe
"C:\Users\Admin\AppData\Local\Temp\f97e137e_by_Libranalysis.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3932

C:\Windows\SysWOW64\DpiScaling.exe
C:\Windows\System32\DpiScaling.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2296

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2076

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.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:3368

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\DpiScaling.exe"
3⤵
PID:1328

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2308

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

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\-65A6372\-65logim.jpeg
MD5
e5f436337cd83d5f6ebfb6b82216e573

SHA1
1e5ad317f6409c5489fbe0b8c472daedc9b86fb7

SHA256
bc2460c9b726bd372461863db8cead8521e98255cbfad0a8d48359c9a9577111

SHA512
22fc09b366d58634254db6a6ba890b7f4fb98763608d0580829e3a66c8c4bd57a29e26938ea27b63de154fa20a1ed65030bde380b46100be90e3d8532fce9da8

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrf.ini
MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logri.ini
MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrv.ini
MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1328-128-0x0000000000000000-mapping.dmp

Download
memory/2296-119-0x0000000000000000-mapping.dmp

Download
memory/2296-121-0x0000000010410000-0x000000001043D000-memory.dmp

Filesize
180KB

Download
memory/2296-122-0x0000000004450000-0x0000000004770000-memory.dmp

Filesize
3.1MB

Download
memory/2296-123-0x0000000004350000-0x0000000004364000-memory.dmp

Filesize
80KB

Download
memory/2296-120-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/2308-132-0x0000000000000000-mapping.dmp

Download
memory/2308-133-0x00007FF79C790000-0x00007FF79C823000-memory.dmp

Filesize
588KB

Download
memory/2308-134-0x000001A9ABB90000-0x000001A9ABCDD000-memory.dmp

Filesize
1.3MB

Download
memory/3000-131-0x0000000006E10000-0x0000000006EC6000-memory.dmp

Filesize
728KB

Download
memory/3000-124-0x00000000067E0000-0x00000000068E8000-memory.dmp

Filesize
1.0MB

Download
memory/3368-127-0x0000000002BB0000-0x0000000002BDD000-memory.dmp

Filesize
180KB

Download
memory/3368-129-0x0000000004740000-0x0000000004A60000-memory.dmp

Filesize
3.1MB

Download
memory/3368-130-0x00000000044E0000-0x0000000004573000-memory.dmp

Filesize
588KB

Download
memory/3368-126-0x00000000003F0000-0x0000000000403000-memory.dmp

Filesize
76KB

Download
memory/3368-125-0x0000000000000000-mapping.dmp

Download
memory/3932-114-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/3932-116-0x0000000003930000-0x000000000394A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads