formbook | fa5502396dc7ec0fc5508d901eb8b3e555558cdbaff338a1911db0edd4563b78

General

Target

uorr23190.exe
Size

249KB
MD5

28e013c2654f47916f1a62cf09308cad
SHA1

fa785ccc69ec30254ee9b81f87dca6764350075e
SHA256

fa5502396dc7ec0fc5508d901eb8b3e555558cdbaff338a1911db0edd4563b78
SHA512

69c2de2dd642e287a956baf250ebe592b00b93295600006232fe69e473dcd2dc350df2b0ecb7f92a3d0a20e35f8951bd8e25e6290bcf629df97e326e738f16ca

Score

10^/10

formbook rv9n rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

rv9n

C2

http://www.cjspizza.net/rv9n/

Decoy

olivia-grace.show

zhuwww.com

keiretsu.xyz

olidnh.space

searuleansec.com

2fastrepair.com

brooklynmetalroof.com

scodol.com

novaprint.pro

the-loaner.com

nextroundscap.com

zbwlggs.com

internetautodealer.com

xn--tornrealestate-ekb.com

yunjiuhuo.com

skandinaviskakryptobanken.com

coxivarag.rest

ophthalmologylab.com

zzzzgjcdbqnn98.net

doeful.com

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1404-56-0x000000000041F120-mapping.dmp	formbook
behavioral1/memory/1404-55-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/332-64-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1464 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

uorr23190.exe

pid process

1768 uorr23190.exe

pid	process
1464	cmd.exe

pid	process
1768	uorr23190.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

uorr23190.exeuorr23190.execontrol.exe

description	pid	process	target process
PID 1768 set thread context of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1404 set thread context of 1264	1404	uorr23190.exe	Explorer.EXE
PID 332 set thread context of 1264	332	control.exe	Explorer.EXE

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

uorr23190.execontrol.exe

pid	process
1404	uorr23190.exe
1404	uorr23190.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe
332	control.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

uorr23190.execontrol.exe

pid process

1404 uorr23190.exe
1404 uorr23190.exe
1404 uorr23190.exe
332 control.exe
332 control.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

uorr23190.execontrol.exe

description pid process

Token: SeDebugPrivilege 1404 uorr23190.exe
Token: SeDebugPrivilege 332 control.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
1264 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
1264 Explorer.EXE

pid	process
1264	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1404	uorr23190.exe
Token: SeDebugPrivilege	332	control.exe

pid	process
1264	Explorer.EXE
1264	Explorer.EXE

pid	process
1264	Explorer.EXE
1264	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

uorr23190.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1768 wrote to memory of 1404	1768	uorr23190.exe	uorr23190.exe
PID 1264 wrote to memory of 332	1264	Explorer.EXE	control.exe
PID 1264 wrote to memory of 332	1264	Explorer.EXE	control.exe
PID 1264 wrote to memory of 332	1264	Explorer.EXE	control.exe
PID 1264 wrote to memory of 332	1264	Explorer.EXE	control.exe
PID 332 wrote to memory of 1464	332	control.exe	cmd.exe
PID 332 wrote to memory of 1464	332	control.exe	cmd.exe
PID 332 wrote to memory of 1464	332	control.exe	cmd.exe
PID 332 wrote to memory of 1464	332	control.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1264

C:\Users\Admin\AppData\Local\Temp\uorr23190.exe
"C:\Users\Admin\AppData\Local\Temp\uorr23190.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1768

C:\Users\Admin\AppData\Local\Temp\uorr23190.exe
"C:\Users\Admin\AppData\Local\Temp\uorr23190.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1404

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:332

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\uorr23190.exe"
3⤵
- Deletes itself
PID:1464

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\nsdF104.tmp\yzwbonbom.dll
MD5
8b7c957c4a8ddf81d0ebb46d55054e1e

SHA1
6a17d7bf1915a1ccdfa39227a10fa443400af774

SHA256
1eaf128b2888192f6659cc7c70aa0db515057449f873f40e0fd3a3cd6a8105b0

SHA512
a6579a5c8a1f26b786cd29823d0106f0b876df41256b3c21fa5d7a041c3a696b62ae87dcd0fd1336240c82bce37ae7e0ecefbf8dbb6d57c57aeaf3e399f7b2e3

Download Submit
memory/332-61-0x0000000000000000-mapping.dmp

Download
memory/332-67-0x0000000000900000-0x0000000000993000-memory.dmp

Filesize
588KB

Download
memory/332-66-0x0000000000B30000-0x0000000000E33000-memory.dmp

Filesize
3.0MB

Download
memory/332-64-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/332-63-0x0000000000EE0000-0x0000000000EFF000-memory.dmp

Filesize
124KB

Download
memory/1264-60-0x0000000006CE0000-0x0000000006E72000-memory.dmp

Filesize
1.6MB

Download
memory/1264-68-0x0000000004A20000-0x0000000004AF1000-memory.dmp

Filesize
836KB

Download
memory/1404-59-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/1404-58-0x0000000000730000-0x0000000000A33000-memory.dmp

Filesize
3.0MB

Download
memory/1404-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1404-56-0x000000000041F120-mapping.dmp

Download
memory/1464-65-0x0000000000000000-mapping.dmp

Download
memory/1768-53-0x0000000075821000-0x0000000075823000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads