formbook | 9406c764fa44815b3cb4c105f2cc051dd2e764086ec7df66e49992e5c9681f01

General

Target

GXB032199034.js
Size

2.7MB
MD5

528d4b33434e3c8ce689f137dba1c894
SHA1

09cf5206b5b80e2cf130a313699cd50f3d62709d
SHA256

9406c764fa44815b3cb4c105f2cc051dd2e764086ec7df66e49992e5c9681f01
SHA512

706251e9e9dd62b30268f4a9c0888de390d201ae4af0b0725358efe4399db2404e850195678495b857d66a76a831a65849f04a6cc7b28735a42b5a04e8604486
SSDEEP

6144:STNgGWMXjQS3H1WfCovS9TuaDqFBpgU5MXZDJ+5svwXJ6ho1LpEieK4W2WxzD2pi:qtid

Score

10^/10

formbook wshrat me15 persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

me15

Decoy

thegrill253.com

arthousecorp.com

acre-com.com

dreambarnhollow.com

winwin220693.online

shinohtrade.com

blockcchain.help

8hx3.vip

lifeshinelearning.com

havencoinvestmentgroup.com

thebesthomehacks.com

the-country-wiki.com

xskt.club

sunrisemedia.space

crecrown.com

0hpail.cyou

artwelding.store

psilome.com

layerbabuena.club

miras.shop

Extracted

Family

wshrat

C2

http://45.90.222.131:7121

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Formbook payload 6 IoCs

rat

resource	yara_rule
behavioral1/files/0x000c000000018b02-64.dat	formbook
behavioral1/files/0x000c000000018b02-66.dat	formbook
behavioral1/memory/2936-69-0x0000000000DE0000-0x0000000000E0F000-memory.dmp	formbook
behavioral1/memory/2892-78-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook
behavioral1/files/0x000c000000018b02-80.dat	formbook
behavioral1/memory/2892-81-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Blocklisted process makes network request 8 IoCs

flow	pid	Process
3	2400	wscript.exe
4	2396	wscript.exe
8	2396	wscript.exe
9	2396	wscript.exe
10	2396	wscript.exe
11	2396	wscript.exe
12	2396	wscript.exe
14	2396	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GXB032199034.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GXB032199034.js	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2936	bin.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GXB032199034 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\GXB032199034.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000\Software\Microsoft\Windows\CurrentVersion\Run\GXB032199034 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\GXB032199034.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GXB032199034 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\GXB032199034.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000\Software\Microsoft\Windows\CurrentVersion\Run\GXB032199034 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\GXB032199034.js\""	wscript.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	ip-api.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 1204	2936	bin.exe	13
PID 2892 set thread context of 1204	2892	rundll32.exe	13

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Script User-Agent 6 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	12	WSHRAT\|0C17B774\|YKQDESCX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/8/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	9	WSHRAT\|0C17B774\|YKQDESCX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/8/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	10	WSHRAT\|0C17B774\|YKQDESCX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/8/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	11	WSHRAT\|0C17B774\|YKQDESCX\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 8/8/2023\|JavaScript-v3.4\|NL:Netherlands

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2936	bin.exe
2936	bin.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe
2892	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1204	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2936	bin.exe
2936	bin.exe
2936	bin.exe
2892	rundll32.exe
2892	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2936	bin.exe
Token: SeDebugPrivilege	2892	rundll32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2396	2400	wscript.exe	29
PID 2400 wrote to memory of 2396	2400	wscript.exe	29
PID 2400 wrote to memory of 2396	2400	wscript.exe	29
PID 2396 wrote to memory of 2936	2396	wscript.exe	30
PID 2396 wrote to memory of 2936	2396	wscript.exe	30
PID 2396 wrote to memory of 2936	2396	wscript.exe	30
PID 2396 wrote to memory of 2936	2396	wscript.exe	30
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2892	1204	Explorer.EXE	32
PID 2892 wrote to memory of 2688	2892	rundll32.exe	34
PID 2892 wrote to memory of 2688	2892	rundll32.exe	34
PID 2892 wrote to memory of 2688	2892	rundll32.exe	34
PID 2892 wrote to memory of 2688	2892	rundll32.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\system32\wscript.exe
  wscript.exe C:\Users\Admin\AppData\Local\Temp\GXB032199034.js
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\GXB032199034.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:2396
  - - C:\Users\Admin\AppData\Roaming\bin.exe
      "C:\Users\Admin\AppData\Roaming\bin.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2936
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\bin.exe"
    3⤵
    PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\GXB032199034.js

Filesize
2.7MB

MD5
528d4b33434e3c8ce689f137dba1c894

SHA1
09cf5206b5b80e2cf130a313699cd50f3d62709d

SHA256
9406c764fa44815b3cb4c105f2cc051dd2e764086ec7df66e49992e5c9681f01

SHA512
706251e9e9dd62b30268f4a9c0888de390d201ae4af0b0725358efe4399db2404e850195678495b857d66a76a831a65849f04a6cc7b28735a42b5a04e8604486

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GXB032199034.js

Filesize
2.7MB

MD5
528d4b33434e3c8ce689f137dba1c894

SHA1
09cf5206b5b80e2cf130a313699cd50f3d62709d

SHA256
9406c764fa44815b3cb4c105f2cc051dd2e764086ec7df66e49992e5c9681f01

SHA512
706251e9e9dd62b30268f4a9c0888de390d201ae4af0b0725358efe4399db2404e850195678495b857d66a76a831a65849f04a6cc7b28735a42b5a04e8604486

Download Submit
C:\Users\Admin\AppData\Roaming\bin.exe

Filesize
185KB

MD5
788f57c9156b4733574dc253f76fe2e7

SHA1
51ec54fdbcc849bb2658f3f668610addb9fcb287

SHA256
14af70dcbf912475a041701493188d184d6c2fd4a0bb8f8c1e5a3a2660d30b0c

SHA512
18baae46f385e2c90435fe0d93214a9046f821ba1abd7a581603f14dc9bd7fb79d1f5599aeb14b10a99794fd8ebd544e354cc3421f8883d54c0958e51627c036

Download Submit
C:\Users\Admin\AppData\Roaming\bin.exe

Filesize
185KB

MD5
788f57c9156b4733574dc253f76fe2e7

SHA1
51ec54fdbcc849bb2658f3f668610addb9fcb287

SHA256
14af70dcbf912475a041701493188d184d6c2fd4a0bb8f8c1e5a3a2660d30b0c

SHA512
18baae46f385e2c90435fe0d93214a9046f821ba1abd7a581603f14dc9bd7fb79d1f5599aeb14b10a99794fd8ebd544e354cc3421f8883d54c0958e51627c036

Download Submit
C:\Users\Admin\AppData\Roaming\bin.exe

Filesize
185KB

MD5
788f57c9156b4733574dc253f76fe2e7

SHA1
51ec54fdbcc849bb2658f3f668610addb9fcb287

SHA256
14af70dcbf912475a041701493188d184d6c2fd4a0bb8f8c1e5a3a2660d30b0c

SHA512
18baae46f385e2c90435fe0d93214a9046f821ba1abd7a581603f14dc9bd7fb79d1f5599aeb14b10a99794fd8ebd544e354cc3421f8883d54c0958e51627c036

Download Submit
C:\Users\Admin\AppData\Roaming\wshsdk.zip

Filesize
12.4MB

MD5
d9a63dfd8b73629421bb44bcde09f312

SHA1
7855575c12eaee0e734f3901ca1da2931e9b587a

SHA256
9d5bb028794410fda9d1b3e0f8deb6beee5bd4e1e55340bd375a209c81dc98eb

SHA512
df195c22f7818569cc92e995846ab507caa30f341ac902cc8afe6f06ae4493709e7f80357c91cf14b21e58e2154e0b35f2154d8a313bf36fcff0b72b3a539cf8

Download Submit
C:\Users\Admin\AppData\Roaming\wshsdk\Lib\SITE-P~1\adodbapi\test\is64bit.py

Filesize
1KB

MD5
ca2cc8e73bbca371935bbc92ed18d567

SHA1
1adb458919e842cd78c72b1ff00e5e93cb6ef75e

SHA256
bea3f797921992fda45c19db41e10e3b325bcdd3ea35d35c1fa70535477ad9c1

SHA512
b63df3bad9272f45ba0f50e2c50aaed7a04eb1b000d5855d9f3a8e5c5f2d381c667b1e9c1e1f03f80584a7941a96992838664ae9dd25e1b8320e026da35b8223

Download Submit
memory/1204-70-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/1204-92-0x000007FEF5970000-0x000007FEF5AB3000-memory.dmp

Filesize
1.3MB

Download
memory/1204-72-0x0000000006470000-0x0000000006598000-memory.dmp

Filesize
1.2MB

Download
memory/1204-91-0x00000000069D0000-0x0000000006A95000-memory.dmp

Filesize
788KB

Download
memory/1204-89-0x000007FEB3B10000-0x000007FEB3B1A000-memory.dmp

Filesize
40KB

Download
memory/1204-83-0x0000000006470000-0x0000000006598000-memory.dmp

Filesize
1.2MB

Download
memory/1204-88-0x000007FEF5970000-0x000007FEF5AB3000-memory.dmp

Filesize
1.3MB

Download
memory/1204-87-0x00000000069D0000-0x0000000006A95000-memory.dmp

Filesize
788KB

Download
memory/1204-86-0x00000000069D0000-0x0000000006A95000-memory.dmp

Filesize
788KB

Download
memory/2892-77-0x0000000000FA0000-0x0000000000FAE000-memory.dmp

Filesize
56KB

Download
memory/2892-85-0x00000000009D0000-0x0000000000A64000-memory.dmp

Filesize
592KB

Download
memory/2892-81-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2892-79-0x0000000000C00000-0x0000000000F03000-memory.dmp

Filesize
3.0MB

Download
memory/2892-78-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2892-75-0x0000000000FA0000-0x0000000000FAE000-memory.dmp

Filesize
56KB

Download
memory/2892-74-0x0000000000FA0000-0x0000000000FAE000-memory.dmp

Filesize
56KB

Download
memory/2936-69-0x0000000000DE0000-0x0000000000E0F000-memory.dmp

Filesize
188KB

Download
memory/2936-71-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/2936-68-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads