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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1476-66-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/1476-69-0x0000000010410000-0x000000001043D000-memory.dmp	formbook
behavioral1/memory/388-77-0x0000000000090000-0x00000000000BD000-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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ONRT9 = "C:\\Program Files (x86)\\Nj0mplr58\\mfctt4tq2ep.exe"	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:

dialer.exerundll32.exe

description	pid	process	target process
PID 1476 set thread context of 1196	1476	dialer.exe	Explorer.EXE
PID 388 set thread context of 1196	388	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)\Nj0mplr58\mfctt4tq2ep.exe rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nj0mplr58\mfctt4tq2ep.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-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

dialer.exerundll32.exe

pid	process
1476	dialer.exe
1476	dialer.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe
388	rundll32.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

dialer.exerundll32.exe

pid process

1476 dialer.exe
1476 dialer.exe
1476 dialer.exe
388 rundll32.exe
388 rundll32.exe
388 rundll32.exe
388 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dialer.exerundll32.exe

description pid process

Token: SeDebugPrivilege 1476 dialer.exe
Token: SeDebugPrivilege 388 rundll32.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1476	dialer.exe
Token: SeDebugPrivilege	388	rundll32.exe

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

7c1896ee_by_Libranalysis.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1304 wrote to memory of 1476	1304	7c1896ee_by_Libranalysis.exe	dialer.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 1196 wrote to memory of 388	1196	Explorer.EXE	rundll32.exe
PID 388 wrote to memory of 924	388	rundll32.exe	cmd.exe
PID 388 wrote to memory of 924	388	rundll32.exe	cmd.exe
PID 388 wrote to memory of 924	388	rundll32.exe	cmd.exe
PID 388 wrote to memory of 924	388	rundll32.exe	cmd.exe
PID 388 wrote to memory of 904	388	rundll32.exe	Firefox.exe
PID 388 wrote to memory of 904	388	rundll32.exe	Firefox.exe
PID 388 wrote to memory of 904	388	rundll32.exe	Firefox.exe
PID 388 wrote to memory of 904	388	rundll32.exe	Firefox.exe
PID 388 wrote to memory of 904	388	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 use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1196
- 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:1304
- - C:\Windows\SysWOW64\dialer.exe
    C:\Windows\System32\dialer.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1476
- 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:388
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\dialer.exe"
    3⤵
    PID:924
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:904

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

MD5
aa680171f890fa464aeaf1c198c16ca9

SHA1
b83cd29c35a9cf2bd7c19aeea5e59564c5258668

SHA256
d4d53d3e62c7c5d17e10a348d782a9e64345ede18fb3b0f7fab49aa98f950e58

SHA512
83f7d7cd246a8739bc7973cc1d877e1ef8ba4f5dfdf1db147ca768d2401299ca255ff485f550b3dcb642084a5106939bd1e24f60f146871bb894cbb53a424846

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
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/388-73-0x0000000000000000-mapping.dmp

Download
memory/388-79-0x0000000001EB0000-0x0000000001F43000-memory.dmp

Filesize
588KB

Download
memory/388-78-0x0000000002290000-0x0000000002593000-memory.dmp

Filesize
3.0MB

Download
memory/388-76-0x0000000000780000-0x000000000078E000-memory.dmp

Filesize
56KB

Download
memory/388-77-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/904-82-0x000000013F4D0000-0x000000013F563000-memory.dmp

Filesize
588KB

Download
memory/904-83-0x0000000000060000-0x0000000000166000-memory.dmp

Filesize
1.0MB

Download
memory/904-81-0x0000000000000000-mapping.dmp

Download
memory/924-75-0x0000000000000000-mapping.dmp

Download
memory/1196-80-0x0000000007170000-0x00000000072FC000-memory.dmp

Filesize
1.5MB

Download
memory/1196-72-0x0000000006490000-0x00000000065EF000-memory.dmp

Filesize
1.4MB

Download
memory/1304-60-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/1304-65-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

Filesize
8KB

Download
memory/1304-62-0x00000000002B0000-0x00000000002CA000-memory.dmp

Filesize
104KB

Download
memory/1476-68-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1476-71-0x0000000000740000-0x0000000000754000-memory.dmp

Filesize
80KB

Download
memory/1476-70-0x00000000020B0000-0x00000000023B3000-memory.dmp

Filesize
3.0MB

Download
memory/1476-69-0x0000000010410000-0x000000001043D000-memory.dmp

Filesize
180KB

Download
memory/1476-66-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads