formbook | e28bce0b6ccf49e32050baa8539c9b91cbbbd9dbd8382be57f6e8c44bab74956

Analysis

max time kernel
152s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
05/05/2023, 12:30

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General

Target

Inv_7623980.exe
Size

715KB
MD5

227d565668ead14885a943f83fc3383e
SHA1

88f2b466e2dd969d7b012cd53d4fba511159ccef
SHA256

e28bce0b6ccf49e32050baa8539c9b91cbbbd9dbd8382be57f6e8c44bab74956
SHA512

c5771abdacca1f2c77638f990d29c13e667afc1acb1f5aa59de2c6f09774e1300c222185feffbf4bf440e5610fe60022389f2d9380725db7e78acd2e57df07cb
SSDEEP

12288:yF6syO+aQwRj/4pC8ogspJ+2uRmlAcaaQaM6pajDVkEgc2OX7T:fD3pC8fs/duRVsBpFEgc2M

Score

10^/10

formbook m82 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m82

Decoy

jamesdevereux.com

artificialturfminneapolis.com

hongmeiyan.com

lojaderoupasbr.com

yit.africa

austinrelocationexpert.com

saiva.page

exitsategy.com

chochonux.com

klosterbraeu-unterliezheim.com

byseymanur.com

sblwarwickshire.co.uk

brazimaid.com

ciogame.com

bronzesailing.com

dwkapl.xyz

022dyd.com

compassandpathwriting.com

alphabet1x.com

selfcleaninghairbrush.co.uk

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4664-149-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4664-166-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3192-188-0x0000000000AC0000-0x0000000000AEF000-memory.dmp	formbook
behavioral2/memory/3192-197-0x0000000000AC0000-0x0000000000AEF000-memory.dmp	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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	Inv_7623980.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 4664	2636	Inv_7623980.exe	94
PID 4664 set thread context of 2560	4664	RegSvcs.exe	56
PID 3192 set thread context of 2560	3192	raserver.exe	56

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

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
3056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
2636	Inv_7623980.exe
2636	Inv_7623980.exe
2636	Inv_7623980.exe
2636	Inv_7623980.exe
3032	powershell.exe
4664	RegSvcs.exe
4664	RegSvcs.exe
4664	RegSvcs.exe
4664	RegSvcs.exe
3032	powershell.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe
3192	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2560	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4664	RegSvcs.exe
4664	RegSvcs.exe
4664	RegSvcs.exe
3192	raserver.exe
3192	raserver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2636	Inv_7623980.exe
Token: SeDebugPrivilege	3032	powershell.exe
Token: SeDebugPrivilege	4664	RegSvcs.exe
Token: SeDebugPrivilege	3192	raserver.exe
Token: SeShutdownPrivilege	2560	Explorer.EXE
Token: SeCreatePagefilePrivilege	2560	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 3032	2636	Inv_7623980.exe	89
PID 2636 wrote to memory of 3032	2636	Inv_7623980.exe	89
PID 2636 wrote to memory of 3032	2636	Inv_7623980.exe	89
PID 2636 wrote to memory of 3056	2636	Inv_7623980.exe	91
PID 2636 wrote to memory of 3056	2636	Inv_7623980.exe	91
PID 2636 wrote to memory of 3056	2636	Inv_7623980.exe	91
PID 2636 wrote to memory of 4368	2636	Inv_7623980.exe	93
PID 2636 wrote to memory of 4368	2636	Inv_7623980.exe	93
PID 2636 wrote to memory of 4368	2636	Inv_7623980.exe	93
PID 2636 wrote to memory of 4664	2636	Inv_7623980.exe	94
PID 2636 wrote to memory of 4664	2636	Inv_7623980.exe	94
PID 2636 wrote to memory of 4664	2636	Inv_7623980.exe	94
PID 2636 wrote to memory of 4664	2636	Inv_7623980.exe	94
PID 2636 wrote to memory of 4664	2636	Inv_7623980.exe	94
PID 2636 wrote to memory of 4664	2636	Inv_7623980.exe	94
PID 2560 wrote to memory of 3192	2560	Explorer.EXE	96
PID 2560 wrote to memory of 3192	2560	Explorer.EXE	96
PID 2560 wrote to memory of 3192	2560	Explorer.EXE	96
PID 3192 wrote to memory of 1328	3192	raserver.exe	97
PID 3192 wrote to memory of 1328	3192	raserver.exe	97
PID 3192 wrote to memory of 1328	3192	raserver.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Users\Admin\AppData\Local\Temp\Inv_7623980.exe
  "C:\Users\Admin\AppData\Local\Temp\Inv_7623980.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\reNJbBlIU.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3032
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\reNJbBlIU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2FDA.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3056
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:4368
- - 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:4664
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:3304
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3192
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qjrav2hr.y04.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2FDA.tmp

Filesize
1KB

MD5
f447dbcc88a6d5537db34b77ca480829

SHA1
bd5c2858f6c7794a923c1a84fbe3eecdf8632bd6

SHA256
12d9ab959344707efbf29aa0a6c632c1078ae4b487d5169245b8e95e0ff29fea

SHA512
5fb7d58df7b09e211034cb53a3f9671ca8a6c3ae09a33bb454418438487dc92620eae188d7ffa2061a4dfb2b33c07c72e9e50b3df3a5165724fcbd92c0fe74c5

Download Submit
memory/2560-168-0x00000000032D0000-0x0000000003476000-memory.dmp

Filesize
1.6MB

Download
memory/2560-200-0x0000000008E20000-0x0000000008F52000-memory.dmp

Filesize
1.2MB

Download
memory/2560-201-0x0000000008E20000-0x0000000008F52000-memory.dmp

Filesize
1.2MB

Download
memory/2560-203-0x0000000008E20000-0x0000000008F52000-memory.dmp

Filesize
1.2MB

Download
memory/2636-135-0x0000000005090000-0x0000000005122000-memory.dmp

Filesize
584KB

Download
memory/2636-136-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/2636-137-0x0000000005140000-0x000000000514A000-memory.dmp

Filesize
40KB

Download
memory/2636-138-0x0000000002C30000-0x0000000002C40000-memory.dmp

Filesize
64KB

Download
memory/2636-139-0x0000000008480000-0x000000000851C000-memory.dmp

Filesize
624KB

Download
memory/2636-133-0x0000000000650000-0x000000000070A000-memory.dmp

Filesize
744KB

Download
memory/2636-134-0x0000000005740000-0x0000000005CE4000-memory.dmp

Filesize
5.6MB

Download
memory/3032-164-0x0000000006160000-0x000000000617E000-memory.dmp

Filesize
120KB

Download
memory/3032-169-0x0000000006730000-0x0000000006762000-memory.dmp

Filesize
200KB

Download
memory/3032-151-0x00000000051A0000-0x00000000051C2000-memory.dmp

Filesize
136KB

Download
memory/3032-148-0x0000000005250000-0x0000000005878000-memory.dmp

Filesize
6.2MB

Download
memory/3032-146-0x0000000004C10000-0x0000000004C20000-memory.dmp

Filesize
64KB

Download
memory/3032-147-0x0000000004C10000-0x0000000004C20000-memory.dmp

Filesize
64KB

Download
memory/3032-153-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Filesize
408KB

Download
memory/3032-194-0x0000000007790000-0x0000000007798000-memory.dmp

Filesize
32KB

Download
memory/3032-190-0x00000000076F0000-0x0000000007786000-memory.dmp

Filesize
600KB

Download
memory/3032-152-0x0000000005A70000-0x0000000005AD6000-memory.dmp

Filesize
408KB

Download
memory/3032-170-0x0000000071500000-0x000000007154C000-memory.dmp

Filesize
304KB

Download
memory/3032-180-0x0000000006710000-0x000000000672E000-memory.dmp

Filesize
120KB

Download
memory/3032-181-0x0000000004C10000-0x0000000004C20000-memory.dmp

Filesize
64KB

Download
memory/3032-182-0x000000007F480000-0x000000007F490000-memory.dmp

Filesize
64KB

Download
memory/3032-183-0x0000000007AB0000-0x000000000812A000-memory.dmp

Filesize
6.5MB

Download
memory/3032-184-0x0000000007460000-0x000000000747A000-memory.dmp

Filesize
104KB

Download
memory/3032-193-0x00000000077B0000-0x00000000077CA000-memory.dmp

Filesize
104KB

Download
memory/3032-144-0x0000000004B90000-0x0000000004BC6000-memory.dmp

Filesize
216KB

Download
memory/3032-192-0x00000000076A0000-0x00000000076AE000-memory.dmp

Filesize
56KB

Download
memory/3032-189-0x00000000074E0000-0x00000000074EA000-memory.dmp

Filesize
40KB

Download
memory/3192-187-0x0000000000BD0000-0x0000000000BEF000-memory.dmp

Filesize
124KB

Download
memory/3192-191-0x0000000002CB0000-0x0000000002FFA000-memory.dmp

Filesize
3.3MB

Download
memory/3192-188-0x0000000000AC0000-0x0000000000AEF000-memory.dmp

Filesize
188KB

Download
memory/3192-185-0x0000000000BD0000-0x0000000000BEF000-memory.dmp

Filesize
124KB

Download
memory/3192-197-0x0000000000AC0000-0x0000000000AEF000-memory.dmp

Filesize
188KB

Download
memory/3192-199-0x0000000002AF0000-0x0000000002B84000-memory.dmp

Filesize
592KB

Download
memory/4664-167-0x0000000001450000-0x0000000001465000-memory.dmp

Filesize
84KB

Download
memory/4664-166-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4664-165-0x00000000014E0000-0x000000000182A000-memory.dmp

Filesize
3.3MB

Download
memory/4664-149-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download