formbook | ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6

General

Target

ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe
Size

14KB
MD5

9f031a71a8f4dedaff85f360942cd0b7
SHA1

337686652fc8aa067691eb88e00734b477ca86e5
SHA256

ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6
SHA512

72ee3d4db1507147eeba417f0e69063a123139d9f1f2216927b006c2aa32f9aa0840ee45d74afb8b6c47b104949a9d7d05117e8a7b88bad478fb45521862b42d

Score

10^/10

formbook s4s9 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s4s9

Decoy

qianyuandianshang.com

bernardklein.com

slhomeservices.com

findasaas.com

janellelancaster.xyz

umkpro.site

nr6949.online

mersquare.club

lanariproperties.com

3rdeyefocused.com

giftexpress8260.xyz

hilleleven.xyz

beajod.com

kosazs.online

ishare.team

mb314.com

xjjinxingda.com

ayekooprojectamazing.com

ballsybanter.com

todayshoppingbd.com

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/4080-124-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/4080-125-0x000000000041F0E0-mapping.dmp	formbook
behavioral1/memory/4080-130-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1632-136-0x0000000002FB0000-0x0000000002FDF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exeMSBuild.execolorcpl.exe

description	pid	process	target process
PID 3192 set thread context of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 4080 set thread context of 1692	4080	MSBuild.exe	Explorer.EXE
PID 4080 set thread context of 1692	4080	MSBuild.exe	Explorer.EXE
PID 1632 set thread context of 1692	1632	colorcpl.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
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1916 timeout.exe

pid	process
1916	timeout.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exeMSBuild.execolorcpl.exe

pid	process
3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe
3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe
4080	MSBuild.exe
4080	MSBuild.exe
4080	MSBuild.exe
4080	MSBuild.exe
4080	MSBuild.exe
4080	MSBuild.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe
1632	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1692 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

MSBuild.execolorcpl.exe

pid process

4080 MSBuild.exe
4080 MSBuild.exe
4080 MSBuild.exe
4080 MSBuild.exe
1632 colorcpl.exe
1632 colorcpl.exe

pid	process
1692	Explorer.EXE

pid	process
4080	MSBuild.exe
4080	MSBuild.exe
4080	MSBuild.exe
4080	MSBuild.exe
1632	colorcpl.exe
1632	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exeMSBuild.execolorcpl.exe

description	pid	process
Token: SeDebugPrivilege	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe
Token: SeDebugPrivilege	4080	MSBuild.exe
Token: SeDebugPrivilege	1632	colorcpl.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.execmd.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 3192 wrote to memory of 1592	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	cmd.exe
PID 3192 wrote to memory of 1592	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	cmd.exe
PID 3192 wrote to memory of 1592	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	cmd.exe
PID 1592 wrote to memory of 1916	1592	cmd.exe	timeout.exe
PID 1592 wrote to memory of 1916	1592	cmd.exe	timeout.exe
PID 1592 wrote to memory of 1916	1592	cmd.exe	timeout.exe
PID 3192 wrote to memory of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 3192 wrote to memory of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 3192 wrote to memory of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 3192 wrote to memory of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 3192 wrote to memory of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 3192 wrote to memory of 4080	3192	ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe	MSBuild.exe
PID 1692 wrote to memory of 1632	1692	Explorer.EXE	colorcpl.exe
PID 1692 wrote to memory of 1632	1692	Explorer.EXE	colorcpl.exe
PID 1692 wrote to memory of 1632	1692	Explorer.EXE	colorcpl.exe
PID 1632 wrote to memory of 3060	1632	colorcpl.exe	cmd.exe
PID 1632 wrote to memory of 3060	1632	colorcpl.exe	cmd.exe
PID 1632 wrote to memory of 3060	1632	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1692

C:\Users\Admin\AppData\Local\Temp\ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe
"C:\Users\Admin\AppData\Local\Temp\ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3192

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 2
3⤵
- Suspicious use of WriteProcessMemory
PID:1592

C:\Windows\SysWOW64\timeout.exe
timeout 2
4⤵
- Delays execution with timeout.exe
PID:1916

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4080

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1668

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1112

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2116

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1572

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1508

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1604

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1360

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1340

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1868

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:3060

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

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Downloads

memory/1592-122-0x0000000000000000-mapping.dmp

Download
memory/1632-138-0x0000000004D10000-0x0000000004EAB000-memory.dmp

Filesize
1.6MB

Download
memory/1632-137-0x0000000005050000-0x0000000005370000-memory.dmp

Filesize
3.1MB

Download
memory/1632-135-0x0000000000D70000-0x0000000000D89000-memory.dmp

Filesize
100KB

Download
memory/1632-136-0x0000000002FB0000-0x0000000002FDF000-memory.dmp

Filesize
188KB

Download
memory/1632-133-0x0000000000000000-mapping.dmp

Download
memory/1692-129-0x0000000002EC0000-0x0000000002FBC000-memory.dmp

Filesize
1008KB

Download
memory/1692-139-0x0000000006B20000-0x0000000006C94000-memory.dmp

Filesize
1.5MB

Download
memory/1692-132-0x0000000005800000-0x000000000595F000-memory.dmp

Filesize
1.4MB

Download
memory/1916-123-0x0000000000000000-mapping.dmp

Download
memory/3060-134-0x0000000000000000-mapping.dmp

Download
memory/3192-121-0x00000000094F0000-0x000000000953C000-memory.dmp

Filesize
304KB

Download
memory/3192-116-0x0000000000BC0000-0x0000000000BC8000-memory.dmp

Filesize
32KB

Download
memory/3192-120-0x0000000004E20000-0x0000000004E8A000-memory.dmp

Filesize
424KB

Download
memory/3192-119-0x00000000053F0000-0x00000000053FA000-memory.dmp

Filesize
40KB

Download
memory/3192-118-0x0000000005430000-0x00000000054C2000-memory.dmp

Filesize
584KB

Download
memory/3192-117-0x0000000005890000-0x0000000005D8E000-memory.dmp

Filesize
5.0MB

Download
memory/4080-128-0x0000000001730000-0x00000000018CE000-memory.dmp

Filesize
1.6MB

Download
memory/4080-130-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4080-131-0x0000000001730000-0x00000000018CE000-memory.dmp

Filesize
1.6MB

Download
memory/4080-127-0x00000000018D0000-0x0000000001BF0000-memory.dmp

Filesize
3.1MB

Download
memory/4080-125-0x000000000041F0E0-mapping.dmp

Download
memory/4080-124-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads