formbook | 25e097a39a96c50952ce3e8131cbd7c80914e7fd1cfd57ae4eb9397a597b47e0

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
13/06/2022, 16:18

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General

Target
89329d5788f5b0b0be3f4e481bad6754.exe
Size 444KB
Sample220613-trx78adee6
SHA256 25e097a39a96c50952ce3e8131cbd7c80914e7fd1cfd57ae4eb9397a597b47e0
MD5 89329d5788f5b0b0be3f4e481bad6754
SHA1 9ad19bc87357844fdf260846ae22fca871d2d23b
SHA512 b464527cee15eed6f633d3185f5a0e4390ddd8f6ef19abe42d66af4673861522ade41cca5b768d9a2c6541dc4de3d2fae6fa49e14814e25d42507e8ae8faac3f
MD5 SHA1 SHA512

Score

10^/10

formbook xloader uf61 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

Campaign

uf61

Decoy

getscaleyoursales.info
hikaku-choice.site
swiftxpress.net
handyomar.com
era-alcdc.com
endanimal.com
dawagners.com
edu1490.info
4663sevenhills.com
cheatinject.xyz
philporterpianoman.com
diplomaoficial.net
global1776.net
houseoftequila.xyz
fixedig.com
spravkao-s-dostavkoi.com
wellthcollective.club
mahamay.business
savedari.com
cryptophones.trade
officebabe.com
ligaslotindo777.com
lovesbar.com
boyebydesign.com
37796.xyz
jdshisha.com
lenderprisecorporation.com
myinfobits.com
xpjvip00.com
mattwon.net
bk-transports.com
dcfandome.net
funheli.com
thesuccesscompany.net
mluxbeauty.com
stimmbuch.com
isrvr-ccrforum.info
oceanfrontshi.com
autarkicsolutions.com
proadaptogena.com
tongzixun.com
commetter.com
conostock.com
hillbillycabal.com
fouradvs.com
supercense.com
march-it.com
thewesleyford.com
umaimon.ink
recipevabyrs.online
calbhamor-courses.com
xn--4dbrbhdl5dit.com
staybays.com
0xjj.xyz
citizensforedwardholland.com
biessedluck.net
kty97920t3lec.xyz
mcjtkj.com
overshop.online
grocits.com
heikewinkler.com
internationalclothesmarket.com
blazefuzer.com
stgabrielcoconutoil.com
conradwise.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3320-137-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/3320-143-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/4404-145-0x0000000000F20000-0x0000000000F4B000-memory.dmp	xloader
behavioral2/memory/4404-150-0x0000000000F20000-0x0000000000F4B000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msdt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\UNMDGL2X = "C:\\Program Files (x86)\\Zlzbxn\\e4f8slu.exe"	msdt.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
T1081

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4216 set thread context of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 3320 set thread context of 2408	3320	RegSvcs.exe	59
PID 4404 set thread context of 2408	4404	msdt.exe	59

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Zlzbxn\e4f8slu.exe	msdt.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
4216	89329d5788f5b0b0be3f4e481bad6754.exe
4216	89329d5788f5b0b0be3f4e481bad6754.exe
3320	RegSvcs.exe
3320	RegSvcs.exe
3320	RegSvcs.exe
3320	RegSvcs.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2408	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3320	RegSvcs.exe
3320	RegSvcs.exe
3320	RegSvcs.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe
4404	msdt.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4216	89329d5788f5b0b0be3f4e481bad6754.exe
Token: SeDebugPrivilege	3320	RegSvcs.exe
Token: SeDebugPrivilege	4404	msdt.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 4488	4216	89329d5788f5b0b0be3f4e481bad6754.exe	89
PID 4216 wrote to memory of 4488	4216	89329d5788f5b0b0be3f4e481bad6754.exe	89
PID 4216 wrote to memory of 4488	4216	89329d5788f5b0b0be3f4e481bad6754.exe	89
PID 4216 wrote to memory of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 4216 wrote to memory of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 4216 wrote to memory of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 4216 wrote to memory of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 4216 wrote to memory of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 4216 wrote to memory of 3320	4216	89329d5788f5b0b0be3f4e481bad6754.exe	90
PID 2408 wrote to memory of 4404	2408	Explorer.EXE	91
PID 2408 wrote to memory of 4404	2408	Explorer.EXE	91
PID 2408 wrote to memory of 4404	2408	Explorer.EXE	91
PID 4404 wrote to memory of 620	4404	msdt.exe	92
PID 4404 wrote to memory of 620	4404	msdt.exe	92
PID 4404 wrote to memory of 620	4404	msdt.exe	92
PID 4404 wrote to memory of 1080	4404	msdt.exe	94
PID 4404 wrote to memory of 1080	4404	msdt.exe	94
PID 4404 wrote to memory of 1080	4404	msdt.exe	94
PID 4404 wrote to memory of 508	4404	msdt.exe	96
PID 4404 wrote to memory of 508	4404	msdt.exe	96
PID 4404 wrote to memory of 508	4404	msdt.exe	96
PID 4404 wrote to memory of 1372	4404	msdt.exe	98
PID 4404 wrote to memory of 1372	4404	msdt.exe	98
PID 4404 wrote to memory of 1372	4404	msdt.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Users\Admin\AppData\Local\Temp\89329d5788f5b0b0be3f4e481bad6754.exe
  "C:\Users\Admin\AppData\Local\Temp\89329d5788f5b0b0be3f4e481bad6754.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:4488
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3320
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Adds policy 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:4404
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:620
- - 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:1080
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:508
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 40KB
SHA256 b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
MD5 b608d407fc15adea97c26936bc6f03f6
SHA1 953e7420801c76393902c0d6bb56148947e41571
SHA512 cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
SSDEEP 48:2j3WBA+IIYICVEq8MX0D0HSFlNUK6lGNxGt7KLk8s8LKvUf9KVyJ7hU:u2FCn8MZyFlulGNxGt7KLyeymw
MD5 SHA1 SHA512 SSDEEP

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DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 48KB
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574
SSDEEP 96:uRMKLyeymwxCn8MZyFlSynlbiXyKwt8hG:uRkxGOXnlbibhG
MD5 SHA1 SHA512 SSDEEP

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memory/2408-141-0x0000000007780000-0x00000000078A3000-memory.dmp

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memory/2408-151-0x00000000078B0000-0x0000000007A09000-memory.dmp

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memory/2408-149-0x00000000078B0000-0x0000000007A09000-memory.dmp

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memory/3320-139-0x00000000016F0000-0x0000000001A3A000-memory.dmp

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memory/3320-143-0x0000000000400000-0x000000000042B000-memory.dmp

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memory/3320-140-0x0000000001270000-0x0000000001281000-memory.dmp

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memory/3320-137-0x0000000000400000-0x000000000042B000-memory.dmp

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memory/4216-130-0x0000000000980000-0x00000000009F4000-memory.dmp

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memory/4216-131-0x0000000005A30000-0x0000000005FD4000-memory.dmp

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memory/4216-132-0x00000000053A0000-0x0000000005432000-memory.dmp

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memory/4216-133-0x0000000005450000-0x000000000545A000-memory.dmp

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memory/4216-134-0x0000000007D50000-0x0000000007DEC000-memory.dmp

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memory/4404-144-0x00000000003A0000-0x00000000003F7000-memory.dmp

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memory/4404-150-0x0000000000F20000-0x0000000000F4B000-memory.dmp

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memory/4404-148-0x0000000002EF0000-0x0000000002F80000-memory.dmp

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memory/4404-147-0x00000000031C0000-0x000000000350A000-memory.dmp

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memory/4404-145-0x0000000000F20000-0x0000000000F4B000-memory.dmp

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