formbook | 334390d9684d06ddf9cba6191fc5ae450c3c8bcc3f3b0b667a855779573a2020

General

Target

Invoice 16-36-55.exe
Size

918KB
MD5

c5b76d08e1571dfd19d3ab265ec85b2f
SHA1

e9efd2d3ed741511025c1f1b0f1eb1d97aab111d
SHA256

10610b7b6275e7e957ad8992b94b7488d1d55ad72a169f1abc5410f10c717484
SHA512

bc99f126b422cf373af6f5851e7368471e0505e56a42f207a2d79b407fb3de95ebc1defe1ee0cfbaf46f09b3a514ebd45b3ca0195fdf0f8e2d94fc339138bd6a
SSDEEP

12288:Rj9dHqkbfDk3OLqKGTSXzurVj0dEaVj6NAIZuH9lu08jexVbQLJKKmIjYUkt+pLk:RRhHUKGTSXzuBjVZNNelu0FCI

Score

10^/10

formbook d6iz rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

d6iz

Decoy

FkA/Rc+zw+0paU+GEiQh+g==

u54Xp6nujzFowU4P

EOvDCsjIcMgdORQ=

AuwHDKo90fNowU4P

pgyJWSAeSn6PEafn3w==

3uX1Rw+ed9vrNQ==

jF5ap2Dv9C1PwGrd2Q==

HO748Nunv9ftKA==

Y3nTdCLF3gspa0+HEiQh+g==

sTcJEshxAzXL5wGzPaA=

E/w4u2Vb6henwGrd2Q==

HyiDPgQFmbk/EuMX3D7NrWLX0XU=

E2QDkA/Sapg7+GJV8ULKrGLX0XU=

OSgyD3k1WHd+8vQc48OmEfvTww==

AVwcD5BnNY6o588P2A==

OghAuUYpwNlqf3CtJsAyRL5h

qQbNBg5d+StQ22hVZXWVOK0=

/+bLGhaIK8gdORQ=

2EwZLB/UCA4=

he9L+LfD0TAFfsIA0Q==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Invoice 16-36-55.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Invoice 16-36-55.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4772 set thread context of 3900	4772	Invoice 16-36-55.exe	94
PID 3900 set thread context of 3008	3900	Invoice 16-36-55.exe	26
PID 2968 set thread context of 3008	2968	msiexec.exe	26

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
5032	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
4772	Invoice 16-36-55.exe
4772	Invoice 16-36-55.exe
1468	powershell.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
1468	powershell.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3008	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
3900	Invoice 16-36-55.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4772	Invoice 16-36-55.exe
Token: SeDebugPrivilege	1468	powershell.exe
Token: SeDebugPrivilege	3900	Invoice 16-36-55.exe
Token: SeDebugPrivilege	2968	msiexec.exe
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 1468	4772	Invoice 16-36-55.exe	90
PID 4772 wrote to memory of 1468	4772	Invoice 16-36-55.exe	90
PID 4772 wrote to memory of 1468	4772	Invoice 16-36-55.exe	90
PID 4772 wrote to memory of 5032	4772	Invoice 16-36-55.exe	92
PID 4772 wrote to memory of 5032	4772	Invoice 16-36-55.exe	92
PID 4772 wrote to memory of 5032	4772	Invoice 16-36-55.exe	92
PID 4772 wrote to memory of 3900	4772	Invoice 16-36-55.exe	94
PID 4772 wrote to memory of 3900	4772	Invoice 16-36-55.exe	94
PID 4772 wrote to memory of 3900	4772	Invoice 16-36-55.exe	94
PID 4772 wrote to memory of 3900	4772	Invoice 16-36-55.exe	94
PID 4772 wrote to memory of 3900	4772	Invoice 16-36-55.exe	94
PID 4772 wrote to memory of 3900	4772	Invoice 16-36-55.exe	94
PID 3008 wrote to memory of 2968	3008	Explorer.EXE	95
PID 3008 wrote to memory of 2968	3008	Explorer.EXE	95
PID 3008 wrote to memory of 2968	3008	Explorer.EXE	95
PID 2968 wrote to memory of 1504	2968	msiexec.exe	96
PID 2968 wrote to memory of 1504	2968	msiexec.exe	96
PID 2968 wrote to memory of 1504	2968	msiexec.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Users\Admin\AppData\Local\Temp\Invoice 16-36-55.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice 16-36-55.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4772
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ilrVEAfwYEj.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1468
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ilrVEAfwYEj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E36.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:5032
- - C:\Users\Admin\AppData\Local\Temp\Invoice 16-36-55.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice 16-36-55.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3900
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:2968
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1E36.tmp

Filesize
1KB

MD5
f3f19cd5bf00b56d7de787c19ba98930

SHA1
0e5d346367f5371d04447962da15436a7b5b6cf9

SHA256
4462362d058ac0a3ed2f9c86d2b48580e8782ca7cbc23ca5e6a633451dd15cfc

SHA512
87f41cc4e37e5a6480d22bcf52bec13e8a25c1c46074561cbcaab12a8a2a7e43ef236010386ce4489ce8db3a025ec0b1836864d75c6d81edc5454d79bf82f810

Download Submit
memory/1468-164-0x00000000070E0000-0x0000000007176000-memory.dmp

Filesize
600KB

Download
memory/1468-148-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/1468-159-0x0000000006E60000-0x0000000006E7A000-memory.dmp

Filesize
104KB

Download
memory/1468-158-0x00000000074A0000-0x0000000007B1A000-memory.dmp

Filesize
6.5MB

Download
memory/1468-157-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/1468-156-0x0000000071180000-0x00000000711CC000-memory.dmp

Filesize
304KB

Download
memory/1468-140-0x0000000002240000-0x0000000002276000-memory.dmp

Filesize
216KB

Download
memory/1468-170-0x0000000007180000-0x0000000007188000-memory.dmp

Filesize
32KB

Download
memory/1468-143-0x0000000004E10000-0x0000000005438000-memory.dmp

Filesize
6.2MB

Download
memory/1468-169-0x00000000071A0000-0x00000000071BA000-memory.dmp

Filesize
104KB

Download
memory/1468-168-0x0000000007090000-0x000000000709E000-memory.dmp

Filesize
56KB

Download
memory/1468-146-0x0000000004CA0000-0x0000000004CC2000-memory.dmp

Filesize
136KB

Download
memory/1468-160-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

Filesize
40KB

Download
memory/1468-155-0x0000000006120000-0x0000000006152000-memory.dmp

Filesize
200KB

Download
memory/1468-151-0x0000000005B40000-0x0000000005B5E000-memory.dmp

Filesize
120KB

Download
memory/2968-166-0x0000000000B90000-0x0000000000BBD000-memory.dmp

Filesize
180KB

Download
memory/2968-165-0x0000000000DD0000-0x0000000000DE2000-memory.dmp

Filesize
72KB

Download
memory/2968-167-0x0000000002C60000-0x0000000002FAA000-memory.dmp

Filesize
3.3MB

Download
memory/2968-171-0x0000000002FB0000-0x000000000303F000-memory.dmp

Filesize
572KB

Download
memory/2968-172-0x0000000000B90000-0x0000000000BBD000-memory.dmp

Filesize
180KB

Download
memory/3008-154-0x0000000002730000-0x0000000002806000-memory.dmp

Filesize
856KB

Download
memory/3008-173-0x00000000079C0000-0x0000000007A53000-memory.dmp

Filesize
588KB

Download
memory/3008-174-0x00000000079C0000-0x0000000007A53000-memory.dmp

Filesize
588KB

Download
memory/3900-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3900-162-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3900-163-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/3900-153-0x0000000000D70000-0x0000000000D80000-memory.dmp

Filesize
64KB

Download
memory/3900-152-0x00000000012E0000-0x000000000162A000-memory.dmp

Filesize
3.3MB

Download
memory/3900-149-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/3900-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4772-132-0x0000000000F10000-0x0000000000FFC000-memory.dmp

Filesize
944KB

Download
memory/4772-134-0x0000000005A00000-0x0000000005A92000-memory.dmp

Filesize
584KB

Download
memory/4772-133-0x0000000005F10000-0x00000000064B4000-memory.dmp

Filesize
5.6MB

Download
memory/4772-137-0x0000000008810000-0x0000000008876000-memory.dmp

Filesize
408KB

Download
memory/4772-136-0x0000000008400000-0x000000000849C000-memory.dmp

Filesize
624KB

Download
memory/4772-135-0x0000000005990000-0x000000000599A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads