formbook | f1ff0af2e70fe124dff55ac39bd4907001e6f3b7db9576c61ae9a33745b391e9

General

Target

M5q4uWVi2hHJb5C.exe
Size

673KB
MD5

8f59922b722f3d9687be6fbe7560a62e
SHA1

8fa58ece4679a1583f3f63ad1e7584ddae114e02
SHA256

2cf38bc5d5c1fea2c057ec48c472636028f113bea556386f0cc8b785a3a21189
SHA512

118ed74e6d2b0377d0d32366315b3fae260d6bdc5b10b1eaad6c8747a153844a1bec55bca194411e70db71251c5324aa69a0c5133e32cb1440107c5d9afb12e9
SSDEEP

12288:8CxEd61QEWfBQYahsa5cJQAmaNzzePkzYa3Y2fTKQ+KWr:8CxcvfByhsa5+OKzzhZZ7L+pr

Score

10^/10

formbook cz30 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cz30

Decoy

valeriepuma.com

rentyourbag.com

unglesbyessure.com

ahzmjy.site

taazdelights.online

conexoesnews.com

istprimeway.com

elwf4tlu.shop

661.support

fournaisehk.com

glechiu.xyz

2r2pv2.shop

902523.rip

bruggicapy.com

westmobileautodeatailers.online

muaad.co

gridxsens.com

victoronedesigns.com

tecexpressbr.com

crea4net.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4284-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4284-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3344-23-0x0000000000DA0000-0x0000000000DCF000-memory.dmp	formbook
behavioral2/memory/3344-25-0x0000000000DA0000-0x0000000000DCF000-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
T1552.001

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3676 set thread context of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 4284 set thread context of 3428	4284	M5q4uWVi2hHJb5C.exe	37
PID 3344 set thread context of 3428	3344	colorcpl.exe	37

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
4284	M5q4uWVi2hHJb5C.exe
4284	M5q4uWVi2hHJb5C.exe
4284	M5q4uWVi2hHJb5C.exe
4284	M5q4uWVi2hHJb5C.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4284	M5q4uWVi2hHJb5C.exe
4284	M5q4uWVi2hHJb5C.exe
4284	M5q4uWVi2hHJb5C.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe
3344	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4284	M5q4uWVi2hHJb5C.exe
Token: SeDebugPrivilege	3344	colorcpl.exe
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 3676 wrote to memory of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 3676 wrote to memory of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 3676 wrote to memory of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 3676 wrote to memory of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 3676 wrote to memory of 4284	3676	M5q4uWVi2hHJb5C.exe	93
PID 3428 wrote to memory of 3344	3428	Explorer.EXE	94
PID 3428 wrote to memory of 3344	3428	Explorer.EXE	94
PID 3428 wrote to memory of 3344	3428	Explorer.EXE	94
PID 3344 wrote to memory of 3968	3344	colorcpl.exe	95
PID 3344 wrote to memory of 3968	3344	colorcpl.exe	95
PID 3344 wrote to memory of 3968	3344	colorcpl.exe	95
PID 3344 wrote to memory of 2072	3344	colorcpl.exe	97
PID 3344 wrote to memory of 2072	3344	colorcpl.exe	97
PID 3344 wrote to memory of 2072	3344	colorcpl.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Users\Admin\AppData\Local\Temp\M5q4uWVi2hHJb5C.exe
  "C:\Users\Admin\AppData\Local\Temp\M5q4uWVi2hHJb5C.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3676
- - C:\Users\Admin\AppData\Local\Temp\M5q4uWVi2hHJb5C.exe
    "C:\Users\Admin\AppData\Local\Temp\M5q4uWVi2hHJb5C.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4284
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3344
- - 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:3968
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Roaming\842RRO05\842logim.jpeg

Filesize
75KB

MD5
96ba05cb4e02abd61c4a4a8392e85a19

SHA1
d37669b5d423c02714c0299353220f10ec48ba64

SHA256
cb51bbf87e9f4f25ba26c32859b3f97f3ca81520a73119a8ae238672eff35442

SHA512
1c5eda514afea70afdcf4accd3a437b697d1a3b349b824729cea96ced586af42cff9cc1c6cd46dde8e647cbfb64873aeb3cc1577849440c84dd11a66a45ae5b1

Download Submit
C:\Users\Admin\AppData\Roaming\842RRO05\842logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\842RRO05\842logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\842RRO05\842logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\842RRO05\842logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/3344-25-0x0000000000DA0000-0x0000000000DCF000-memory.dmp

Filesize
188KB

Download
memory/3344-45-0x00000000017B0000-0x0000000001843000-memory.dmp

Filesize
588KB

Download
memory/3344-40-0x00000000017B0000-0x0000000001843000-memory.dmp

Filesize
588KB

Download
memory/3344-24-0x0000000002EB0000-0x00000000031FA000-memory.dmp

Filesize
3.3MB

Download
memory/3344-23-0x0000000000DA0000-0x0000000000DCF000-memory.dmp

Filesize
188KB

Download
memory/3344-22-0x0000000000ED0000-0x0000000000EE9000-memory.dmp

Filesize
100KB

Download
memory/3344-21-0x0000000000ED0000-0x0000000000EE9000-memory.dmp

Filesize
100KB

Download
memory/3428-47-0x00000000031F0000-0x0000000003361000-memory.dmp

Filesize
1.4MB

Download
memory/3428-46-0x00000000031F0000-0x0000000003361000-memory.dmp

Filesize
1.4MB

Download
memory/3428-55-0x00000000031F0000-0x0000000003361000-memory.dmp

Filesize
1.4MB

Download
memory/3428-20-0x0000000009550000-0x00000000096F3000-memory.dmp

Filesize
1.6MB

Download
memory/3676-8-0x00000000063A0000-0x00000000063AE000-memory.dmp

Filesize
56KB

Download
memory/3676-5-0x0000000004D70000-0x0000000004D7A000-memory.dmp

Filesize
40KB

Download
memory/3676-1-0x0000000074730000-0x0000000074EE0000-memory.dmp

Filesize
7.7MB

Download
memory/3676-2-0x0000000005370000-0x0000000005914000-memory.dmp

Filesize
5.6MB

Download
memory/3676-15-0x0000000074730000-0x0000000074EE0000-memory.dmp

Filesize
7.7MB

Download
memory/3676-3-0x0000000004DC0000-0x0000000004E52000-memory.dmp

Filesize
584KB

Download
memory/3676-12-0x0000000004CF0000-0x0000000004D00000-memory.dmp

Filesize
64KB

Download
memory/3676-11-0x0000000074730000-0x0000000074EE0000-memory.dmp

Filesize
7.7MB

Download
memory/3676-10-0x0000000008AF0000-0x0000000008B8C000-memory.dmp

Filesize
624KB

Download
memory/3676-9-0x00000000063C0000-0x0000000006436000-memory.dmp

Filesize
472KB

Download
memory/3676-0-0x00000000002B0000-0x000000000035E000-memory.dmp

Filesize
696KB

Download
memory/3676-7-0x0000000006390000-0x000000000639A000-memory.dmp

Filesize
40KB

Download
memory/3676-6-0x0000000005130000-0x0000000005144000-memory.dmp

Filesize
80KB

Download
memory/3676-4-0x0000000004CF0000-0x0000000004D00000-memory.dmp

Filesize
64KB

Download
memory/4284-19-0x0000000001810000-0x0000000001824000-memory.dmp

Filesize
80KB

Download
memory/4284-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4284-16-0x0000000001950000-0x0000000001C9A000-memory.dmp

Filesize
3.3MB

Download
memory/4284-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing