formbook | ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3

General

Target

ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
Size

970KB
MD5

661c72c6ea35739a807366da34d0052f
SHA1

3eea434063b29bd161c875d4ab22ac9983c7bf6e
SHA256

ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3
SHA512

185cc33cbcb52f3dfa5029631d2fef28fd3133c115fdb9d239ead22822ca8ef5066614a405d1c079e770d55acbe2e9da70c95fb5f4f03bc75a9ebd61c4da7e67
SSDEEP

12288:Hh1Lk70TnvjcXn4GJmWvNgczUjmYYSHIFHpCLE+8MbElL3JWl8CnpOOXA:Tk70TrcX4zWvNPURNIFIEWbqYpO

Score

10^/10

formbook bz24 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bz24

Decoy

paltran.com

convadesolutions.com

smyx9b.work

friggerio.com

jndyfjc.com

dm4im2q2.top

adamloweforpresident2020.com

grvtyindustries.com

lovelycacau.com

seqizi.net

xisl88.com

dateknightdelivered.com

celebsmoaic.online

patriciolawnlandscapellc.com

liqq.asia

solutions4educators.com

hybridrate.com

newseza.com

enfejbaz9jdfthea.click

bergstromchevymadison.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/3752-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3752-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3656-20-0x0000000000500000-0x000000000052F000-memory.dmp	formbook
behavioral2/memory/3656-22-0x0000000000500000-0x000000000052F000-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 4888 set thread context of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 3752 set thread context of 3208	3752	aspnet_compiler.exe	43
PID 3656 set thread context of 3208	3656	WWAHost.exe	43

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	WWAHost.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
3752	aspnet_compiler.exe
3752	aspnet_compiler.exe
3752	aspnet_compiler.exe
3752	aspnet_compiler.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3208	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3752	aspnet_compiler.exe
3752	aspnet_compiler.exe
3752	aspnet_compiler.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe
3656	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
Token: SeDebugPrivilege	3752	aspnet_compiler.exe
Token: SeDebugPrivilege	3656	WWAHost.exe
Token: SeShutdownPrivilege	3208	Explorer.EXE
Token: SeCreatePagefilePrivilege	3208	Explorer.EXE
Token: SeShutdownPrivilege	3208	Explorer.EXE
Token: SeCreatePagefilePrivilege	3208	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3208	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 3956	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	88
PID 4888 wrote to memory of 3956	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	88
PID 4888 wrote to memory of 3956	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	88
PID 4888 wrote to memory of 796	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	89
PID 4888 wrote to memory of 796	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	89
PID 4888 wrote to memory of 796	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	89
PID 4888 wrote to memory of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 4888 wrote to memory of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 4888 wrote to memory of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 4888 wrote to memory of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 4888 wrote to memory of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 4888 wrote to memory of 3752	4888	ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe	90
PID 3208 wrote to memory of 3656	3208	Explorer.EXE	91
PID 3208 wrote to memory of 3656	3208	Explorer.EXE	91
PID 3208 wrote to memory of 3656	3208	Explorer.EXE	91
PID 3656 wrote to memory of 4808	3656	WWAHost.exe	101
PID 3656 wrote to memory of 4808	3656	WWAHost.exe	101
PID 3656 wrote to memory of 4808	3656	WWAHost.exe	101
PID 3656 wrote to memory of 4896	3656	WWAHost.exe	106
PID 3656 wrote to memory of 4896	3656	WWAHost.exe	106
PID 3656 wrote to memory of 4896	3656	WWAHost.exe	106

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:3208
- C:\Users\Admin\AppData\Local\Temp\ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe
  "C:\Users\Admin\AppData\Local\Temp\ed39cdb38f54700c6cf37768cabd78367a0de953ab1e64b1fd8e9b640e91d8f3_JC.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3956
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:796
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3752
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.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:3656
- - 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:4808
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4896

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

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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\9PM15TB1\9PMlogim.jpeg

Filesize
82KB

MD5
a3b67df422cb128e10ad34f84c2328ad

SHA1
e2c80aceb7ef46b26af4a25641f8bb066be5d354

SHA256
a382cc92de46c93260052b6f482931b9495d854f954cfe6d5f61b40072a913a6

SHA512
5d08c3c5f89dc41123813e8a88f1b7455ecba30f19dc534053cdd5a19a1ab5df1101d4162404d00f95b7ea7dcfa0f2c62ddfe2e20001dff3a3efca0a24642c94

Download Submit
C:\Users\Admin\AppData\Roaming\9PM15TB1\9PMlogrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\9PM15TB1\9PMlogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\9PM15TB1\9PMlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\9PM15TB1\9PMlogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/3208-16-0x00000000094B0000-0x0000000009654000-memory.dmp

Filesize
1.6MB

Download
memory/3208-24-0x00000000094B0000-0x0000000009654000-memory.dmp

Filesize
1.6MB

Download
memory/3208-46-0x0000000008540000-0x00000000086AE000-memory.dmp

Filesize
1.4MB

Download
memory/3208-45-0x0000000008540000-0x00000000086AE000-memory.dmp

Filesize
1.4MB

Download
memory/3208-43-0x0000000008540000-0x00000000086AE000-memory.dmp

Filesize
1.4MB

Download
memory/3656-22-0x0000000000500000-0x000000000052F000-memory.dmp

Filesize
188KB

Download
memory/3656-20-0x0000000000500000-0x000000000052F000-memory.dmp

Filesize
188KB

Download
memory/3656-42-0x0000000001400000-0x0000000001494000-memory.dmp

Filesize
592KB

Download
memory/3656-21-0x0000000001830000-0x0000000001B7A000-memory.dmp

Filesize
3.3MB

Download
memory/3656-17-0x0000000000010000-0x00000000000EC000-memory.dmp

Filesize
880KB

Download
memory/3656-19-0x0000000000010000-0x00000000000EC000-memory.dmp

Filesize
880KB

Download
memory/3752-12-0x0000000001580000-0x00000000018CA000-memory.dmp

Filesize
3.3MB

Download
memory/3752-15-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/3752-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3752-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4888-6-0x0000000005670000-0x0000000005726000-memory.dmp

Filesize
728KB

Download
memory/4888-0-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4888-11-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4888-7-0x0000000004CD0000-0x0000000004CDA000-memory.dmp

Filesize
40KB

Download
memory/4888-8-0x0000000004D00000-0x0000000004D10000-memory.dmp

Filesize
64KB

Download
memory/4888-5-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/4888-4-0x0000000004D00000-0x0000000004D10000-memory.dmp

Filesize
64KB

Download
memory/4888-2-0x0000000004D00000-0x0000000004D10000-memory.dmp

Filesize
64KB

Download
memory/4888-3-0x0000000004FD0000-0x0000000005086000-memory.dmp

Filesize
728KB

Download
memory/4888-1-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download

Analysis

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