formbook | cd375b3eeffbdb97aaaaa7d568e04c92ecb76d99c43894c291c31c24dd0f4e98

General

Target

400000.InstallUtil.exe
Size

180KB
MD5

fe24b17cba6092bd2da1e5a172a33846
SHA1

df46ed6222eee121dd697e4ff6c7bab3d077c4cf
SHA256

cd375b3eeffbdb97aaaaa7d568e04c92ecb76d99c43894c291c31c24dd0f4e98
SHA512

ba8852dbf1cdb30fcc84b97e12b629f3229d83f2d1217ba172917059bc33e9c4227067e13e42346248f33f047cb04632599d2cdcbb96c4fff36aca028553c40b

Score

10^/10

formbook persistence spyware stealer suricata trojan

Malware Config

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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	chkdsk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\UFIPH8LHPJ = "C:\\Program Files (x86)\\Qqz74lloh\\rrd0pllhizx.exe"	chkdsk.exe

Executes dropped EXE 1 IoCs

Processes:

rrd0pllhizx.exe

pid process

4712 rrd0pllhizx.exe

pid	process
4712	rrd0pllhizx.exe

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

Processes:

400000.InstallUtil.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	400000.InstallUtil.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

400000.InstallUtil.exechkdsk.exe

description	pid	process	target process
PID 3296 set thread context of 384	3296	400000.InstallUtil.exe	Explorer.EXE
PID 4136 set thread context of 384	4136	chkdsk.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

chkdsk.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe	chkdsk.exe
File opened for modification	C:\Program Files (x86)\Qqz74lloh	Explorer.EXE
File created	C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

400000.InstallUtil.exechkdsk.exerrd0pllhizx.exe

pid	process
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
3296	400000.InstallUtil.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4712	rrd0pllhizx.exe
4712	rrd0pllhizx.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe
4136	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

384 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

400000.InstallUtil.exechkdsk.exe

pid process

3296 400000.InstallUtil.exe
3296 400000.InstallUtil.exe
3296 400000.InstallUtil.exe
4136 chkdsk.exe
4136 chkdsk.exe
4136 chkdsk.exe
4136 chkdsk.exe

pid	process
384	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

400000.InstallUtil.exechkdsk.exerrd0pllhizx.exe

description	pid	process
Token: SeDebugPrivilege	3296	400000.InstallUtil.exe
Token: SeDebugPrivilege	4136	chkdsk.exe
Token: SeDebugPrivilege	4712	rrd0pllhizx.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Explorer.EXEchkdsk.exe

description	pid	process	target process
PID 384 wrote to memory of 4136	384	Explorer.EXE	chkdsk.exe
PID 384 wrote to memory of 4136	384	Explorer.EXE	chkdsk.exe
PID 384 wrote to memory of 4136	384	Explorer.EXE	chkdsk.exe
PID 4136 wrote to memory of 3020	4136	chkdsk.exe	cmd.exe
PID 4136 wrote to memory of 3020	4136	chkdsk.exe	cmd.exe
PID 4136 wrote to memory of 3020	4136	chkdsk.exe	cmd.exe
PID 4136 wrote to memory of 2972	4136	chkdsk.exe	Firefox.exe
PID 4136 wrote to memory of 2972	4136	chkdsk.exe	Firefox.exe
PID 4136 wrote to memory of 2972	4136	chkdsk.exe	Firefox.exe
PID 384 wrote to memory of 4712	384	Explorer.EXE	rrd0pllhizx.exe
PID 384 wrote to memory of 4712	384	Explorer.EXE	rrd0pllhizx.exe
PID 384 wrote to memory of 4712	384	Explorer.EXE	rrd0pllhizx.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:384

C:\Users\Admin\AppData\Local\Temp\400000.InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\400000.InstallUtil.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3296

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4136

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\400000.InstallUtil.exe"
3⤵
PID:3020

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2972

C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe
"C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4712

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe
Filesize
180KB

MD5
fe24b17cba6092bd2da1e5a172a33846

SHA1
df46ed6222eee121dd697e4ff6c7bab3d077c4cf

SHA256
cd375b3eeffbdb97aaaaa7d568e04c92ecb76d99c43894c291c31c24dd0f4e98

SHA512
ba8852dbf1cdb30fcc84b97e12b629f3229d83f2d1217ba172917059bc33e9c4227067e13e42346248f33f047cb04632599d2cdcbb96c4fff36aca028553c40b

Download Submit
C:\Program Files (x86)\Qqz74lloh\rrd0pllhizx.exe
Filesize
180KB

MD5
fe24b17cba6092bd2da1e5a172a33846

SHA1
df46ed6222eee121dd697e4ff6c7bab3d077c4cf

SHA256
cd375b3eeffbdb97aaaaa7d568e04c92ecb76d99c43894c291c31c24dd0f4e98

SHA512
ba8852dbf1cdb30fcc84b97e12b629f3229d83f2d1217ba172917059bc33e9c4227067e13e42346248f33f047cb04632599d2cdcbb96c4fff36aca028553c40b

Download Submit
memory/384-132-0x0000000002B40000-0x0000000002C22000-memory.dmp

Filesize
904KB

Download
memory/384-141-0x0000000008370000-0x000000000844B000-memory.dmp

Filesize
876KB

Download
memory/384-140-0x0000000008370000-0x000000000844B000-memory.dmp

Filesize
876KB

Download
memory/3020-134-0x0000000000000000-mapping.dmp

Download
memory/3296-130-0x0000000000FB0000-0x00000000012FA000-memory.dmp

Filesize
3.3MB

Download
memory/3296-131-0x0000000000910000-0x0000000000921000-memory.dmp

Filesize
68KB

Download
memory/4136-138-0x0000000001830000-0x00000000018C0000-memory.dmp

Filesize
576KB

Download
memory/4136-139-0x00000000012E0000-0x000000000130D000-memory.dmp

Filesize
180KB

Download
memory/4136-137-0x0000000001AE0000-0x0000000001E2A000-memory.dmp

Filesize
3.3MB

Download
memory/4136-135-0x0000000000E90000-0x0000000000E9A000-memory.dmp

Filesize
40KB

Download
memory/4136-136-0x00000000012E0000-0x000000000130D000-memory.dmp

Filesize
180KB

Download
memory/4136-133-0x0000000000000000-mapping.dmp

Download
memory/4712-142-0x0000000000000000-mapping.dmp

Download
memory/4712-145-0x00000000018D0000-0x0000000001C1A000-memory.dmp

Filesize
3.3MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads