formbook | f8be5adbd627ccaf7b9377cb184dc5301246e872b16d0e5a87ead6db52b4c61c

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2024, 13:30

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General

Target

e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe
Size

841KB
MD5

e0481d215eb5a6d8eaab639888c87851
SHA1

7509d007466cfeff5e935b28ea6fdd894b646035
SHA256

f8be5adbd627ccaf7b9377cb184dc5301246e872b16d0e5a87ead6db52b4c61c
SHA512

7a85bfa9ab45ceacf6b8dc4155ce2b861b3d7e01c91bb1c2d9e821e5801040748624eb0c2b92975bf0eb15a16119e127108570546935861961c38446bca1ccda
SSDEEP

6144:00cgUiX4ifPM1715kQRm1DKLmpv1w0IU8GB92gkk9/EhSWH3neVErgYy0yZKuPE/:vUwMLWEMGaYI9Bk/gou6MYGZHwXgcsc

Score

10^/10

formbook da7 credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

da7

Decoy

mtqyc.com

www41116677.com

accessorydwellingarchitect.com

ebizlite.net

ijetsglobal.com

rigrout.info

saritagoldie.com

ambrb.net

surebuthow.com

hayvay.net

tru.store

kfastt.com

tisonbuildingsolutions.com

hotel-mayadelmar.com

josestories.com

jlwriters.com

fertilitypatientleads.net

mobilespraytanlasvegas.com

stlm1688.net

sejingmovie121.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4124-24-0x00000000059B0000-0x00000000059DA000-memory.dmp	formbook
behavioral2/memory/5112-30-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/5112-33-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\F2BXNLIX5JG = "C:\\Program Files (x86)\\Ei4alv\\2d0lprkd6t.exe"	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XJmdcQ.url	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.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
T1552.001
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4124 set thread context of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 5112 set thread context of 3488	5112	vbc.exe	56
PID 5112 set thread context of 3488	5112	vbc.exe	56
PID 4328 set thread context of 3488	4328	wscript.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Ei4alv\2d0lprkd6t.exe	wscript.exe

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe
4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe
5112	vbc.exe
5112	vbc.exe
5112	vbc.exe
5112	vbc.exe
5112	vbc.exe
5112	vbc.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe
4328	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
5112	vbc.exe
5112	vbc.exe
5112	vbc.exe
5112	vbc.exe
4328	wscript.exe
4328	wscript.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe
Token: SeDebugPrivilege	5112	vbc.exe
Token: SeDebugPrivilege	4328	wscript.exe
Token: SeShutdownPrivilege	3488	Explorer.EXE
Token: SeCreatePagefilePrivilege	3488	Explorer.EXE
Token: SeShutdownPrivilege	3488	Explorer.EXE
Token: SeCreatePagefilePrivilege	3488	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3488	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4124 wrote to memory of 552	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	85
PID 4124 wrote to memory of 552	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	85
PID 4124 wrote to memory of 552	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	85
PID 552 wrote to memory of 1152	552	csc.exe	88
PID 552 wrote to memory of 1152	552	csc.exe	88
PID 552 wrote to memory of 1152	552	csc.exe	88
PID 4124 wrote to memory of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 4124 wrote to memory of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 4124 wrote to memory of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 4124 wrote to memory of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 4124 wrote to memory of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 4124 wrote to memory of 5112	4124	e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe	89
PID 3488 wrote to memory of 4328	3488	Explorer.EXE	94
PID 3488 wrote to memory of 4328	3488	Explorer.EXE	94
PID 3488 wrote to memory of 4328	3488	Explorer.EXE	94
PID 4328 wrote to memory of 4796	4328	wscript.exe	96
PID 4328 wrote to memory of 4796	4328	wscript.exe	96
PID 4328 wrote to memory of 4796	4328	wscript.exe	96
PID 4328 wrote to memory of 2008	4328	wscript.exe	102
PID 4328 wrote to memory of 2008	4328	wscript.exe	102
PID 4328 wrote to memory of 2008	4328	wscript.exe	102

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	wscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e0481d215eb5a6d8eaab639888c87851_JaffaCakes118.exe"
  2⤵
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4124
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\5oiz43o4\5oiz43o4.cmdline"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:552
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES9FCA.tmp" "c:\Users\Admin\AppData\Local\Temp\5oiz43o4\CSCDD2F66DAE0B8440C95C080F8C63D66E1.TMP"
      4⤵
      System Location Discovery: System Language Discovery
      PID:1152
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:5112
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4328
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4796
- - 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⤵
    - System Location Discovery: System Language Discovery
    PID:2008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\5oiz43o4\5oiz43o4.dll

Filesize
15KB

MD5
697c88aeed255e20ea24e6e39a40ee25

SHA1
1ae01dfa6d412a3ce53e85cbc3a7f4904d64821e

SHA256
5fd6cbacf50ac2f9a389b36eae1e4d89b5747a1391effe2101796f73a3925739

SHA512
af4b7dcf2938ce64aec17ded4ad97d5ab0fd2bf335665fe8789e2f3f714915d0e49170ede499e2a9201537a330bc81a641d36005504eb86509bfb47f424ca58e

Download Submit
C:\Users\Admin\AppData\Local\Temp\5oiz43o4\5oiz43o4.pdb

Filesize
51KB

MD5
7b7a144afc678e14750f255966460b12

SHA1
515b537b1380640169438fbc4f1241c4f6290029

SHA256
f6644a60c9810594c3d4c1c3f9c130b52d5ee90328bae9598367ba9bf3e7289b

SHA512
36ddb177d114e16071faa8f30b42163afe142053ff2302c4981c1d8dc55374247e6aec800f75d91375eb0d8cb800bdac8d92ae54b5d159368ce7bb13032adbf7

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

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES9FCA.tmp

Filesize
1KB

MD5
4cf9011c25fbb541fed480aea1cdca6b

SHA1
2c3e801f1737064cd40b2eb30536d6b2688dfc89

SHA256
622000c0a0ceb316408ea99b5a110076f3d747ef0a795779ae84e83d3386fffa

SHA512
2d8ab6d7fa7e6ef1c5fca08e46c7a9bf7636924c574bd3710671e80df6d70e5300b6f23a7b3c3e958035e802cf14730525b37a73302132dd5fe87ba1c4163675

Download Submit
C:\Users\Admin\AppData\Roaming\25L23-77\25Llogim.jpeg

Filesize
87KB

MD5
ae4bee933854f59e01f2d6f16c7c4815

SHA1
91a20580b94a777c0aa7d442bbf3bfae4b9c3a2f

SHA256
d5b803f64d1adb4538f4c6da68bc7e0cddf5cbde25b17e57a9b4de1a248b51da

SHA512
de775a3fe69e73d56ece02180a0c56a8f5fdabaec3d1c4cc1a72a7ebce6a648076f73d0333c38e08e06e2919d6ef83df26269aa6a8e864bea8fa1fcdfb86b229

Download Submit
C:\Users\Admin\AppData\Roaming\25L23-77\25Llogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\25L23-77\25Llogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\25L23-77\25Llogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\5oiz43o4\5oiz43o4.0.cs

Filesize
28KB

MD5
1aa33af63d999b60f7f7fe21144dc0a7

SHA1
d93b216abbf86bbe7e1b1e95165de55d79d9edf5

SHA256
22cda5af730bef9b72a5d441bea5352efa4e2709d560c8e635375157e56a52c1

SHA512
6739dd7b4275f15a6347c475123bd088048cee9a7f3315d1bbc8435d43dfca709e9dc61a58aecd64a2a4a5e62aee0436461175c20576b7295e17d1f19255966e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\5oiz43o4\5oiz43o4.cmdline

Filesize
312B

MD5
308504f50e94eec6ee6c1ed13d5a6cc3

SHA1
7893546a1d9c3233984dfa7b968f79ca852af1cf

SHA256
f51f2f9ac0fcfcf843ad3ae7d8672a88bcfd5c273f77f118bc2bd8f089b3e4b6

SHA512
b1c4652ab6841b0eea26518d349fd63015652c61e99fb9dc3374e873eff8823372dce30485c42d9a056f135cdbdf82cf7ab564c3c843fdfcf3bbe278261d976f

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\5oiz43o4\CSCDD2F66DAE0B8440C95C080F8C63D66E1.TMP

Filesize
1KB

MD5
04f0fce9fdb7e8b6d85815b51faadf52

SHA1
9a11fb04e9c56570a81c124c7ef77f9f2de69e14

SHA256
b7b39a3474c256f485da0dab74e7ae3dae783bc84a0eba0db7601bb17c90886a

SHA512
9e14fba7dc9960279ce1045774dd89c61f1de18f96e3eba3062cec7a6e2a4406308dbfb1f22f32e934013fbddaa5f6e7309956a1df97dcdd326ebcceb5061ab4

Download Submit
memory/3488-43-0x0000000008DC0000-0x0000000008EFA000-memory.dmp

Filesize
1.2MB

Download
memory/3488-60-0x0000000008DC0000-0x0000000008EFA000-memory.dmp

Filesize
1.2MB

Download
memory/3488-45-0x0000000008DC0000-0x0000000008EFA000-memory.dmp

Filesize
1.2MB

Download
memory/3488-40-0x0000000008BB0000-0x0000000008D29000-memory.dmp

Filesize
1.5MB

Download
memory/3488-35-0x00000000086E0000-0x000000000880F000-memory.dmp

Filesize
1.2MB

Download
memory/3488-34-0x0000000008BB0000-0x0000000008D29000-memory.dmp

Filesize
1.5MB

Download
memory/3488-31-0x00000000086E0000-0x000000000880F000-memory.dmp

Filesize
1.2MB

Download
memory/4124-21-0x0000000005840000-0x000000000584C000-memory.dmp

Filesize
48KB

Download
memory/4124-19-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/4124-28-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/4124-1-0x0000000000DB0000-0x0000000000E8A000-memory.dmp

Filesize
872KB

Download
memory/4124-24-0x00000000059B0000-0x00000000059DA000-memory.dmp

Filesize
168KB

Download
memory/4124-25-0x0000000006040000-0x00000000060DC000-memory.dmp

Filesize
624KB

Download
memory/4124-20-0x0000000005970000-0x00000000059AA000-memory.dmp

Filesize
232KB

Download
memory/4124-5-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/4124-17-0x00000000018F0000-0x00000000018FA000-memory.dmp

Filesize
40KB

Download
memory/4124-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/4328-38-0x0000000000060000-0x0000000000087000-memory.dmp

Filesize
156KB

Download
memory/4328-39-0x0000000000060000-0x0000000000087000-memory.dmp

Filesize
156KB

Download
memory/5112-33-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/5112-30-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download