formbook | 1ab3c31624f7aed4e2ec9feecee3cff24e8904709800508e13b6526369e02236

General

Target

7c1896ee_by_Libranalysis.exe
Size

742KB
MD5

7c1896eeb884021f4d74144ec78be2e8
SHA1

b4fb3b31f69fc5b048eeb43ea6f8fd97f1fb8f7a
SHA256

1ab3c31624f7aed4e2ec9feecee3cff24e8904709800508e13b6526369e02236
SHA512

e90782dc8b8cbfa8f6052080c6daeaffccede01d57bb944a4d52b9a0fae5fe53009ba0dd4b8c5932ee09c808db38fba27bd7bc6d570d55936b49c7259bc4d935

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2708-119-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/2708-121-0x0000000010410000-0x000000001043D000-memory.dmp	formbook
behavioral2/memory/2708-123-0x00000000029F0000-0x0000000002B3A000-memory.dmp	formbook
behavioral2/memory/8-128-0x0000000000AE0000-0x0000000000B0D000-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:

rundll32.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FFQLAV2P = "C:\\Program Files (x86)\\Nrltx\\inu3fh.exe"	rundll32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

mshta.exerundll32.exe

description	pid	process	target process
PID 2708 set thread context of 2116	2708	mshta.exe	Explorer.EXE
PID 8 set thread context of 2116	8	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)\Nrltx\inu3fh.exe rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nrltx\inu3fh.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-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

mshta.exerundll32.exe

pid	process
2708	mshta.exe
2708	mshta.exe
2708	mshta.exe
2708	mshta.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe
8	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2116 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

mshta.exerundll32.exe

pid process

2708 mshta.exe
2708 mshta.exe
2708 mshta.exe
8 rundll32.exe
8 rundll32.exe
8 rundll32.exe
8 rundll32.exe

pid	process
2116	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

mshta.exeExplorer.EXErundll32.exe

description	pid	process
Token: SeDebugPrivilege	2708	mshta.exe
Token: SeShutdownPrivilege	2116	Explorer.EXE
Token: SeCreatePagefilePrivilege	2116	Explorer.EXE
Token: SeDebugPrivilege	8	rundll32.exe
Token: SeShutdownPrivilege	2116	Explorer.EXE
Token: SeCreatePagefilePrivilege	2116	Explorer.EXE
Token: SeShutdownPrivilege	2116	Explorer.EXE
Token: SeCreatePagefilePrivilege	2116	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

2116 Explorer.EXE

pid	process
2116	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

7c1896ee_by_Libranalysis.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 3904 wrote to memory of 2708	3904	7c1896ee_by_Libranalysis.exe	mshta.exe
PID 3904 wrote to memory of 2708	3904	7c1896ee_by_Libranalysis.exe	mshta.exe
PID 3904 wrote to memory of 2708	3904	7c1896ee_by_Libranalysis.exe	mshta.exe
PID 3904 wrote to memory of 2708	3904	7c1896ee_by_Libranalysis.exe	mshta.exe
PID 3904 wrote to memory of 2708	3904	7c1896ee_by_Libranalysis.exe	mshta.exe
PID 3904 wrote to memory of 2708	3904	7c1896ee_by_Libranalysis.exe	mshta.exe
PID 2116 wrote to memory of 8	2116	Explorer.EXE	rundll32.exe
PID 2116 wrote to memory of 8	2116	Explorer.EXE	rundll32.exe
PID 2116 wrote to memory of 8	2116	Explorer.EXE	rundll32.exe
PID 8 wrote to memory of 3456	8	rundll32.exe	cmd.exe
PID 8 wrote to memory of 3456	8	rundll32.exe	cmd.exe
PID 8 wrote to memory of 3456	8	rundll32.exe	cmd.exe
PID 8 wrote to memory of 384	8	rundll32.exe	Firefox.exe
PID 8 wrote to memory of 384	8	rundll32.exe	Firefox.exe
PID 8 wrote to memory of 384	8	rundll32.exe	Firefox.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:2116
- C:\Users\Admin\AppData\Local\Temp\7c1896ee_by_Libranalysis.exe
  "C:\Users\Admin\AppData\Local\Temp\7c1896ee_by_Libranalysis.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3904
- - C:\Windows\SysWOW64\mshta.exe
    C:\Windows\System32\mshta.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:8
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:3456
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:384

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\Roaming\-65A6372\-65logim.jpeg

MD5
46c4c382b3bbbb04218fa9dca458d417

SHA1
21768a9458609293e2fb86b1a82276073d810bf1

SHA256
cfe0abfae8502fb279d21a52aad2905d2e769d7c3aaf3a0d0c7cf521aa194e5f

SHA512
83a4f14d76953337032985d2ed6e9c559caf1687db101c4445668ad68ecb6dfc33412bdbb3e079adf76dc7633d001e2f0d23e6ed14b87496b79f3fe09a598660

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/8-128-0x0000000000AE0000-0x0000000000B0D000-memory.dmp

Filesize
180KB

Download
memory/8-130-0x00000000047B0000-0x0000000004843000-memory.dmp

Filesize
588KB

Download
memory/8-127-0x00000000011F0000-0x0000000001203000-memory.dmp

Filesize
76KB

Download
memory/8-129-0x0000000004950000-0x0000000004C70000-memory.dmp

Filesize
3.1MB

Download
memory/8-125-0x0000000000000000-mapping.dmp

Download
memory/384-132-0x0000000000000000-mapping.dmp

Download
memory/384-134-0x000001A154000000-0x000001A154148000-memory.dmp

Filesize
1.3MB

Download
memory/384-133-0x00007FF754930000-0x00007FF7549C3000-memory.dmp

Filesize
588KB

Download
memory/2116-124-0x00000000057A0000-0x0000000005911000-memory.dmp

Filesize
1.4MB

Download
memory/2116-131-0x0000000003010000-0x00000000030C2000-memory.dmp

Filesize
712KB

Download
memory/2708-123-0x00000000029F0000-0x0000000002B3A000-memory.dmp

Filesize
1.3MB

Download
memory/2708-120-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2708-122-0x0000000003250000-0x0000000003570000-memory.dmp

Filesize
3.1MB

Download
memory/2708-121-0x0000000010410000-0x000000001043D000-memory.dmp

Filesize
180KB

Download
memory/2708-119-0x0000000000000000-mapping.dmp

Download
memory/3456-126-0x0000000000000000-mapping.dmp

Download
memory/3904-114-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/3904-116-0x0000000002150000-0x000000000216A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads