formbook | aa2959d2c85e38ff431701c308fdc8cd71f173bfa9aaa5f02a2fb89c1782d299

General

Target

doc0490192021092110294.exe
Size

478KB
MD5

f22b3511efd4b6bb233ac4e30170b997
SHA1

98060cb83afb98719af740abd07b0f413dc75530
SHA256

6fd5dbec01eb7f767fc3b4046d9aa50f80e50f5ab9439480efb87620faef473c
SHA512

f86eed36dc05d7f49d744461f73ce03b6906ae6e3571cfb624d0a9d7a91062f0dcdc13201b6c6ebc1116f4853a868308082a5dd8dcccec8b2fdeeb37a9962329

Score

10^/10

formbook ergs rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ergs

C2

http://www.iselotech.com/ergs/

Decoy

oceanprimesanfrancisco.com

dk-tnc.com

sodangwang.com

abrat-ed.com

dusubiqiqijem.xyz

getsup.online

homeneto.com

shose8.com

tronlane.com

nidowicosasod.xyz

independienteatleticclub.com

pca-winschool.com

realbadnastystories.site

bluevioletfloral.com

simplifiedpeacepodcast.com

abcfreediving.com

theyardbunny.com

holoique.com

ibkr1325.com

tjnfioou.xyz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1424-66-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1424-67-0x000000000041F1C0-mapping.dmp	formbook
behavioral1/memory/1964-73-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1708 cmd.exe

pid	process
1708	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

doc0490192021092110294.exedoc0490192021092110294.exewuapp.exe

description	pid	process	target process
PID 1988 set thread context of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1424 set thread context of 1196	1424	doc0490192021092110294.exe	Explorer.EXE
PID 1964 set thread context of 1196	1964	wuapp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

doc0490192021092110294.exewuapp.exe

pid	process
1424	doc0490192021092110294.exe
1424	doc0490192021092110294.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe
1964	wuapp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

doc0490192021092110294.exewuapp.exe

pid process

1424 doc0490192021092110294.exe
1424 doc0490192021092110294.exe
1424 doc0490192021092110294.exe
1964 wuapp.exe
1964 wuapp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

doc0490192021092110294.exewuapp.exe

description pid process

Token: SeDebugPrivilege 1424 doc0490192021092110294.exe
Token: SeDebugPrivilege 1964 wuapp.exe
Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1424	doc0490192021092110294.exe
Token: SeDebugPrivilege	1964	wuapp.exe

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

doc0490192021092110294.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1988 wrote to memory of 1424	1988	doc0490192021092110294.exe	doc0490192021092110294.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1196 wrote to memory of 1964	1196	Explorer.EXE	wuapp.exe
PID 1964 wrote to memory of 1708	1964	wuapp.exe	cmd.exe
PID 1964 wrote to memory of 1708	1964	wuapp.exe	cmd.exe
PID 1964 wrote to memory of 1708	1964	wuapp.exe	cmd.exe
PID 1964 wrote to memory of 1708	1964	wuapp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1196

C:\Users\Admin\AppData\Local\Temp\doc0490192021092110294.exe
"C:\Users\Admin\AppData\Local\Temp\doc0490192021092110294.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1988

C:\Users\Admin\AppData\Local\Temp\doc0490192021092110294.exe
"C:\Users\Admin\AppData\Local\Temp\doc0490192021092110294.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1424

C:\Windows\SysWOW64\wuapp.exe
"C:\Windows\SysWOW64\wuapp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\doc0490192021092110294.exe"
3⤵
- Deletes itself
PID:1708

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1196-78-0x0000000002740000-0x0000000002750000-memory.dmp

Filesize
64KB

Download
memory/1196-77-0x0000000006480000-0x00000000065E0000-memory.dmp

Filesize
1.4MB

Download
memory/1196-70-0x0000000006350000-0x000000000647A000-memory.dmp

Filesize
1.2MB

Download
memory/1424-68-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download
memory/1424-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1424-67-0x000000000041F1C0-mapping.dmp

Download
memory/1424-69-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download
memory/1708-75-0x0000000000000000-mapping.dmp

Download
memory/1964-73-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1964-71-0x0000000000000000-mapping.dmp

Download
memory/1964-72-0x00000000011D0000-0x00000000011DB000-memory.dmp

Filesize
44KB

Download
memory/1964-74-0x0000000000A60000-0x0000000000D63000-memory.dmp

Filesize
3.0MB

Download
memory/1964-76-0x00000000007F0000-0x0000000000884000-memory.dmp

Filesize
592KB

Download
memory/1988-65-0x0000000000530000-0x000000000056C000-memory.dmp

Filesize
240KB

Download
memory/1988-60-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1988-64-0x0000000004EE0000-0x0000000004F4C000-memory.dmp

Filesize
432KB

Download
memory/1988-63-0x0000000000390000-0x0000000000394000-memory.dmp

Filesize
16KB

Download
memory/1988-62-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads