formbook | 960cd364b10841b71b638aca1807d5667cf340e76102389d45d7df4c17401ed2

General

Target

98c87992_by_Libranalysis.exe
Size

734KB
MD5

98c879923a9cd4da08959fd0318c3d35
SHA1

a3f7a4ee4da515858e2235d91c0206cef37446a9
SHA256

960cd364b10841b71b638aca1807d5667cf340e76102389d45d7df4c17401ed2
SHA512

5294f7018e8ede10f69fef71d15613f067f3d334d366de40949ca9764a82980031785b6c77f798d8f31e8b026a1531a0ea99cefc9812b51672d89e6ec44c612c

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/572-61-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/572-64-0x0000000010410000-0x000000001043D000-memory.dmp	formbook
behavioral1/memory/1840-71-0x0000000000090000-0x00000000000BD000-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:

cmstp.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8P-TJXHXCN = "C:\\Program Files (x86)\\Ecd2\\chkdsk4hd0sxkx.exe"	cmstp.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

dialer.execmstp.exe

description	pid	process	target process
PID 572 set thread context of 1220	572	dialer.exe	Explorer.EXE
PID 1840 set thread context of 1220	1840	cmstp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmstp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Ecd2\chkdsk4hd0sxkx.exe cmstp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ecd2\chkdsk4hd0sxkx.exe	cmstp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

dialer.execmstp.exe

pid	process
572	dialer.exe
572	dialer.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe
1840	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

dialer.execmstp.exe

pid process

572 dialer.exe
572 dialer.exe
572 dialer.exe
1840 cmstp.exe
1840 cmstp.exe
1840 cmstp.exe
1840 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dialer.execmstp.exe

description pid process

Token: SeDebugPrivilege 572 dialer.exe
Token: SeDebugPrivilege 1840 cmstp.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	572	dialer.exe
Token: SeDebugPrivilege	1840	cmstp.exe

pid	process
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

98c87992_by_Libranalysis.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1652 wrote to memory of 572	1652	98c87992_by_Libranalysis.exe	dialer.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1220 wrote to memory of 1840	1220	Explorer.EXE	cmstp.exe
PID 1840 wrote to memory of 984	1840	cmstp.exe	cmd.exe
PID 1840 wrote to memory of 984	1840	cmstp.exe	cmd.exe
PID 1840 wrote to memory of 984	1840	cmstp.exe	cmd.exe
PID 1840 wrote to memory of 984	1840	cmstp.exe	cmd.exe
PID 1840 wrote to memory of 1600	1840	cmstp.exe	Firefox.exe
PID 1840 wrote to memory of 1600	1840	cmstp.exe	Firefox.exe
PID 1840 wrote to memory of 1600	1840	cmstp.exe	Firefox.exe
PID 1840 wrote to memory of 1600	1840	cmstp.exe	Firefox.exe
PID 1840 wrote to memory of 1600	1840	cmstp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\98c87992_by_Libranalysis.exe
  "C:\Users\Admin\AppData\Local\Temp\98c87992_by_Libranalysis.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1652
- - 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:572
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:1840
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\dialer.exe"
    3⤵
    PID:984
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1600

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
eaf0ac9fe876907057d7b1bf2a3565ae

SHA1
9900efbaba0fbd9e40034756682bba456bcb9ca3

SHA256
c7ef7595c1e1aa04fb96fa613450b794b6590991544ed1704fdeb8425b5d3cad

SHA512
1672518fdf8d1fde90968e5deae511e1e0ee278aeff803e4463a0a1f5ebd47eee959c1c60a0dcfc92185c70d6f6da2ef42e619881b67c2913641a26b89dee57a

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/572-64-0x0000000010410000-0x000000001043D000-memory.dmp

Filesize
180KB

Download
memory/572-63-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/572-66-0x00000000001C0000-0x00000000001D4000-memory.dmp

Filesize
80KB

Download
memory/572-65-0x00000000020E0000-0x00000000023E3000-memory.dmp

Filesize
3.0MB

Download
memory/572-62-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download
memory/572-61-0x0000000000000000-mapping.dmp

Download
memory/984-72-0x0000000000000000-mapping.dmp

Download
memory/1220-67-0x0000000004190000-0x0000000004280000-memory.dmp

Filesize
960KB

Download
memory/1220-75-0x0000000007ED0000-0x000000000804C000-memory.dmp

Filesize
1.5MB

Download
memory/1600-76-0x0000000000000000-mapping.dmp

Download
memory/1600-77-0x000000013F510000-0x000000013F5A3000-memory.dmp

Filesize
588KB

Download
memory/1600-78-0x0000000001290000-0x000000000135D000-memory.dmp

Filesize
820KB

Download
memory/1652-60-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1840-74-0x0000000001D60000-0x0000000001DF3000-memory.dmp

Filesize
588KB

Download
memory/1840-73-0x0000000001EF0000-0x00000000021F3000-memory.dmp

Filesize
3.0MB

Download
memory/1840-71-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/1840-70-0x00000000007B0000-0x00000000007C8000-memory.dmp

Filesize
96KB

Download
memory/1840-68-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads