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 1 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-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation	Invoice 16-36-55.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 1520	1680	Invoice 16-36-55.exe	32
PID 1520 set thread context of 1208	1520	Invoice 16-36-55.exe	16
PID 1396 set thread context of 1208	1396	wininit.exe	16

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
1444	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wininit.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1680	Invoice 16-36-55.exe
1680	Invoice 16-36-55.exe
1756	powershell.exe
1520	Invoice 16-36-55.exe
1520	Invoice 16-36-55.exe
1520	Invoice 16-36-55.exe
1520	Invoice 16-36-55.exe
1396	wininit.exe
1396	wininit.exe
1396	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1520	Invoice 16-36-55.exe
1520	Invoice 16-36-55.exe
1520	Invoice 16-36-55.exe
1396	wininit.exe
1396	wininit.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	Invoice 16-36-55.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	1520	Invoice 16-36-55.exe
Token: SeDebugPrivilege	1396	wininit.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1756	1680	Invoice 16-36-55.exe	28
PID 1680 wrote to memory of 1756	1680	Invoice 16-36-55.exe	28
PID 1680 wrote to memory of 1756	1680	Invoice 16-36-55.exe	28
PID 1680 wrote to memory of 1756	1680	Invoice 16-36-55.exe	28
PID 1680 wrote to memory of 1444	1680	Invoice 16-36-55.exe	30
PID 1680 wrote to memory of 1444	1680	Invoice 16-36-55.exe	30
PID 1680 wrote to memory of 1444	1680	Invoice 16-36-55.exe	30
PID 1680 wrote to memory of 1444	1680	Invoice 16-36-55.exe	30
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1680 wrote to memory of 1520	1680	Invoice 16-36-55.exe	32
PID 1208 wrote to memory of 1396	1208	Explorer.EXE	33
PID 1208 wrote to memory of 1396	1208	Explorer.EXE	33
PID 1208 wrote to memory of 1396	1208	Explorer.EXE	33
PID 1208 wrote to memory of 1396	1208	Explorer.EXE	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\Invoice 16-36-55.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice 16-36-55.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1680
- - 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:1756
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ilrVEAfwYEj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D33.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1444
- - 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:1520
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1396

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8D33.tmp

Filesize
1KB

MD5
6db7bc5a432d383726ce378253af7bb6

SHA1
25a6d939663ee6468d8691698b8827c2918c44ca

SHA256
f05da292060097110bcc488598b9d64556107179486e5794bfe6959b77c2a1fc

SHA512
486d435f65dfa4784f2f253a806801fb313d7be0d1c2ef0cc351ce24bf138e552aa6aff5b041cb1a938b05c54c7948723930ab9193000b6c3252a9862c00c430

Download Submit
memory/1208-85-0x0000000006C00000-0x0000000006D3E000-memory.dmp

Filesize
1.2MB

Download
memory/1208-82-0x0000000006C00000-0x0000000006D3E000-memory.dmp

Filesize
1.2MB

Download
memory/1208-76-0x0000000007260000-0x00000000073DC000-memory.dmp

Filesize
1.5MB

Download
memory/1396-78-0x0000000000C60000-0x0000000000C7A000-memory.dmp

Filesize
104KB

Download
memory/1396-83-0x0000000000100000-0x000000000012D000-memory.dmp

Filesize
180KB

Download
memory/1396-81-0x00000000009B0000-0x0000000000A3F000-memory.dmp

Filesize
572KB

Download
memory/1396-80-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/1396-79-0x0000000000100000-0x000000000012D000-memory.dmp

Filesize
180KB

Download
memory/1520-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-71-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-73-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1520-74-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/1520-75-0x00000000000E0000-0x00000000000F0000-memory.dmp

Filesize
64KB

Download
memory/1680-57-0x00000000005B0000-0x00000000005BC000-memory.dmp

Filesize
48KB

Download
memory/1680-54-0x0000000001180000-0x000000000126C000-memory.dmp

Filesize
944KB

Download
memory/1680-56-0x00000000005A0000-0x00000000005B4000-memory.dmp

Filesize
80KB

Download
memory/1680-63-0x0000000004EA0000-0x0000000004ED4000-memory.dmp

Filesize
208KB

Download
memory/1680-58-0x0000000005730000-0x00000000057BE000-memory.dmp

Filesize
568KB

Download
memory/1680-55-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1756-72-0x000000006E3A0000-0x000000006E94B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads