formbook | 06ec8a555a6c889ed00cf5d054d1ee4e148c02a0f80ef3aabef4189917ab8fc5

General

Target

E-Fatura000000000382920.exe
Size

574KB
MD5

e93ee7a71781b3a3dcf2f950ce1de7ee
SHA1

7157241ac402a3ffbab5082f6903cb816c1cbe16
SHA256

80402770a7a4ab721bd8c0f964330035e0bbd7524995c26eed67990b6915c3c9
SHA512

0c50b475e9a198166f0496a938b650f3f048042df2ca6e7b0e92f80abb5dbb983514ef73ccbe8743e6e7fd57e5fea002383185b7633e80d21b3f6386a0e428ca
SSDEEP

12288:dqCZOhL2k4zUQWkKLMZckbYv9QwwC1zzjtYARJU/dQ:dqfoW1LM7bUSwt16d

Score

10^/10

formbook xloader war0 credential_access discovery loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.0

Campaign

war0

Decoy

siompany.net

55667879.com

smallmouth.net

fordforlano.net

placadesilicon.com

btw-butler.com

almbeauty.com

jbthomson.com

presidentialtennessee.com

chiropractorinnorthport.com

yourber.com

get-luxurycruise.rocks

strakellc.com

eukncg.info

pablovergara.info

sologoods.com

toledovista.com

weightlosscoffees.com

echoawyer.com

csproductionsmedia.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
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

Xloader payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3276-9-0x0000000000400000-0x0000000000427000-memory.dmp	xloader
behavioral2/memory/3276-14-0x0000000000400000-0x0000000000427000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wscript.exe

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\2DU4ANFPS = "C:\\Program Files (x86)\\F5jzxqhv\\gxt4sbl3f6.exe"	wscript.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

Suspicious use of SetThreadContext 3 IoCs

Processes:

E-Fatura000000000382920.exeE-Fatura000000000382920.exewscript.exe

description	pid	Process	procid_target
PID 1348 set thread context of 3276	1348	E-Fatura000000000382920.exe	99
PID 3276 set thread context of 3460	3276	E-Fatura000000000382920.exe	56
PID 1696 set thread context of 3460	1696	wscript.exe	56

Drops file in Program Files directory 1 IoCs

Processes:

wscript.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\F5jzxqhv\gxt4sbl3f6.exe	wscript.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

E-Fatura000000000382920.exewscript.execmd.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	E-Fatura000000000382920.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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	Process
Key created	\Registry\User\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

E-Fatura000000000382920.exewscript.exe

pid	Process
3276	E-Fatura000000000382920.exe
3276	E-Fatura000000000382920.exe
3276	E-Fatura000000000382920.exe
3276	E-Fatura000000000382920.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

E-Fatura000000000382920.exewscript.exe

pid	Process
3276	E-Fatura000000000382920.exe
3276	E-Fatura000000000382920.exe
3276	E-Fatura000000000382920.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe
1696	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

E-Fatura000000000382920.exewscript.exe

description	pid	Process
Token: SeDebugPrivilege	3276	E-Fatura000000000382920.exe
Token: SeDebugPrivilege	1696	wscript.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3460	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

E-Fatura000000000382920.exeExplorer.EXEwscript.exe

description	pid	Process	procid_target
PID 1348 wrote to memory of 3276	1348	E-Fatura000000000382920.exe	99
PID 1348 wrote to memory of 3276	1348	E-Fatura000000000382920.exe	99
PID 1348 wrote to memory of 3276	1348	E-Fatura000000000382920.exe	99
PID 1348 wrote to memory of 3276	1348	E-Fatura000000000382920.exe	99
PID 1348 wrote to memory of 3276	1348	E-Fatura000000000382920.exe	99
PID 1348 wrote to memory of 3276	1348	E-Fatura000000000382920.exe	99
PID 3460 wrote to memory of 1696	3460	Explorer.EXE	100
PID 3460 wrote to memory of 1696	3460	Explorer.EXE	100
PID 3460 wrote to memory of 1696	3460	Explorer.EXE	100
PID 1696 wrote to memory of 1076	1696	wscript.exe	102
PID 1696 wrote to memory of 1076	1696	wscript.exe	102
PID 1696 wrote to memory of 1076	1696	wscript.exe	102
PID 1696 wrote to memory of 2976	1696	wscript.exe	109
PID 1696 wrote to memory of 2976	1696	wscript.exe	109
PID 1696 wrote to memory of 2976	1696	wscript.exe	109
PID 1696 wrote to memory of 4244	1696	wscript.exe	111
PID 1696 wrote to memory of 4244	1696	wscript.exe	111
PID 1696 wrote to memory of 4244	1696	wscript.exe	111

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

wscript.exe

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3460
- C:\Users\Admin\AppData\Local\Temp\E-Fatura000000000382920.exe
  "C:\Users\Admin\AppData\Local\Temp\E-Fatura000000000382920.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1348
- - C:\Users\Admin\AppData\Local\Temp\E-Fatura000000000382920.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3276
- 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:1696
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\E-Fatura000000000382920.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1076
- - 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:2976
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4244

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

3

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
memory/1348-11-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1348-5-0x00000000033A0000-0x00000000033AA000-memory.dmp

Filesize
40KB

Download
memory/1348-1-0x0000000000F80000-0x0000000001016000-memory.dmp

Filesize
600KB

Download
memory/1348-4-0x0000000007FD0000-0x000000000806C000-memory.dmp

Filesize
624KB

Download
memory/1348-2-0x0000000008350000-0x00000000088F4000-memory.dmp

Filesize
5.6MB

Download
memory/1348-6-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/1348-7-0x00000000081C0000-0x00000000081F6000-memory.dmp

Filesize
216KB

Download
memory/1348-8-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1348-3-0x0000000007E90000-0x0000000007F22000-memory.dmp

Filesize
584KB

Download
memory/1348-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/1696-18-0x0000000000080000-0x00000000000A7000-memory.dmp

Filesize
156KB

Download
memory/1696-17-0x0000000000080000-0x00000000000A7000-memory.dmp

Filesize
156KB

Download
memory/3276-9-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/3276-15-0x0000000001540000-0x0000000001550000-memory.dmp

Filesize
64KB

Download
memory/3276-14-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/3276-12-0x0000000001A00000-0x0000000001D4A000-memory.dmp

Filesize
3.3MB

Download
memory/3460-16-0x0000000008CA0000-0x0000000008DA4000-memory.dmp

Filesize
1.0MB

Download
memory/3460-20-0x0000000008CA0000-0x0000000008DA4000-memory.dmp

Filesize
1.0MB

Download
memory/3460-23-0x0000000002D60000-0x0000000002E0C000-memory.dmp

Filesize
688KB

Download
memory/3460-24-0x0000000002D60000-0x0000000002E0C000-memory.dmp

Filesize
688KB

Download
memory/3460-27-0x0000000002D60000-0x0000000002E0C000-memory.dmp

Filesize
688KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads