formbook | 1ce5193f8c40de6f403487483ac4bab962e5bfe73a76b3f5c4608c0bd9c9f20a

General

Target

7084_00_WPG_20211716.exe
Size

630KB
MD5

c438a205d0a5c285ac98f558ee669dfc
SHA1

1c11cdda027a795b929d4876d04cc2c27c89219b
SHA256

e04c2819db3610dc0498ae022644d1b2ab06927cc4fadf23b200af70b551d6d2
SHA512

692c32154133d1682e756379b83440c74a78e8bfb00ec6f3b342d1eb3cd74c5e511950ba5342ce08f5d5a5727c6ba86fd47a66c27cefa54ab2f93a8ce5a2925c
SSDEEP

12288:KUNPWZCOO2120vc6r9o/gvb5zWeLlor+d7UuB45iEbgXP:KUNap7E6poIvdWeh5j45iP

Score

10^/10

formbook ch24 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ch24

Decoy

tmicp.com

lauriceiker.quest

neighbor-works.com

santiemprenderich.wiki

thecraftytxdogmom.com

abramolfactory.com

prettylittlesoles.com

thistimeandilove.space

imperialshaving.com

aflorideallgarden.com

thbfjs.com

marketmove.info

echocoins.com

ztkzw.com

sandyhookfishandribhouse.com

gamesxfr.com

frontline500.com

cbburrnet.com

boliviaoferta.com

jdzmklc.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2836-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2836-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3008-19-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2868	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2984	7084_00_WPG_20211716.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2984 set thread context of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2836 set thread context of 1252	2836	7084_00_WPG_20211716.exe	21
PID 3008 set thread context of 1252	3008	wininit.exe	21

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7084_00_WPG_20211716.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2836	7084_00_WPG_20211716.exe
2836	7084_00_WPG_20211716.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe
3008	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2836	7084_00_WPG_20211716.exe
2836	7084_00_WPG_20211716.exe
2836	7084_00_WPG_20211716.exe
3008	wininit.exe
3008	wininit.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	7084_00_WPG_20211716.exe
Token: SeDebugPrivilege	3008	wininit.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 2984 wrote to memory of 2836	2984	7084_00_WPG_20211716.exe	30
PID 1252 wrote to memory of 3008	1252	Explorer.EXE	31
PID 1252 wrote to memory of 3008	1252	Explorer.EXE	31
PID 1252 wrote to memory of 3008	1252	Explorer.EXE	31
PID 1252 wrote to memory of 3008	1252	Explorer.EXE	31
PID 3008 wrote to memory of 2868	3008	wininit.exe	32
PID 3008 wrote to memory of 2868	3008	wininit.exe	32
PID 3008 wrote to memory of 2868	3008	wininit.exe	32
PID 3008 wrote to memory of 2868	3008	wininit.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Users\Admin\AppData\Local\Temp\7084_00_WPG_20211716.exe
  "C:\Users\Admin\AppData\Local\Temp\7084_00_WPG_20211716.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Users\Admin\AppData\Local\Temp\7084_00_WPG_20211716.exe
    "C:\Users\Admin\AppData\Local\Temp\7084_00_WPG_20211716.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2836
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3008
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\7084_00_WPG_20211716.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsj764A.tmp\nibn.dll

Filesize
355KB

MD5
2903025272487bdafaac262605b15219

SHA1
c9175643f7ee479e45cb07a475d6ed2570e5fd3e

SHA256
729a24f2784fd7f9f02f9696e692f629370a150a1ed5e47b74efa2b0b5bafd72

SHA512
d9d0826386d3ce95f94269754a65b2bb37571b895e67df7a9aa426e46965cf393418abf030ba6a1b9e3de020609d598f821aac7c150e339f12cfc112ee1d4bd3

Download Submit
memory/1252-13-0x0000000002DF0000-0x0000000002EC9000-memory.dmp

Filesize
868KB

Download
memory/1252-12-0x0000000003D10000-0x0000000003F10000-memory.dmp

Filesize
2.0MB

Download
memory/1252-20-0x0000000002DF0000-0x0000000002EC9000-memory.dmp

Filesize
868KB

Download
memory/2836-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2836-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2984-8-0x0000000074B67000-0x0000000074B69000-memory.dmp

Filesize
8KB

Download
memory/3008-16-0x0000000000550000-0x000000000056A000-memory.dmp

Filesize
104KB

Download
memory/3008-18-0x0000000000550000-0x000000000056A000-memory.dmp

Filesize
104KB

Download
memory/3008-19-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download

Analysis

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