formbook | 2cebb91711fec36e567181cd4a08a6deb6be9107382b0040779c5b074df90307

General

Target

11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe
Size

731KB
MD5

7c4e7dc9b73afae121b7f83004013971
SHA1

f9690031e5fec4f0379598f03bd395b6714206c0
SHA256

11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d
SHA512

b10cd46dc62a7bf864ea7c036d7ed4c61cfc29c57d8f480b03f58415a5c1e293d68bc9a9748b4c325c6f142d93c5e86084a01079b6542de43fff7f7408672d2b
SSDEEP

12288:IcCtsy64aJfjXdCkkJ0sNSLXLnEvZWL8tpIgRmus0F:3RyuNjXdM0pLXLEvZWLEpIgRmus0

Score

10^/10

formbook ar73 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ar73

Decoy

classgorilla.com

b6817.com

1wwuwa.top

dgslimited.africa

deepwaterships.com

hkshshoptw.shop

hurricanevalleyatvjamboree.com

ckpconsulting.com

laojiangmath.com

authenticityhacking.com

family-doctor-53205.com

investinstgeorgeut.com

lithoearthsolution.africa

quickhealcareltd.co.uk

delightkgrillw.top

freezeclosettoilet.com

coo1star.com

gemgamut.com

enrichednetworksolutions.com

betterbeeclean.com

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4724-166-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4724-170-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3640-175-0x0000000000F60000-0x0000000000F8F000-memory.dmp	formbook
behavioral2/memory/3640-177-0x0000000000F60000-0x0000000000F8F000-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

Processes:

11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exeMSBuild.execmstp.exe

description	pid	process	target process
PID 1040 set thread context of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 4724 set thread context of 3148	4724	MSBuild.exe	Explorer.EXE
PID 3640 set thread context of 3148	3640	cmstp.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 52 IoCs

Processes:

powershell.exeMSBuild.execmstp.exe

pid	process
2428	powershell.exe
2428	powershell.exe
4724	MSBuild.exe
4724	MSBuild.exe
4724	MSBuild.exe
4724	MSBuild.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe
3640	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3148 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

MSBuild.execmstp.exe

pid process

4724 MSBuild.exe
4724 MSBuild.exe
4724 MSBuild.exe
3640 cmstp.exe
3640 cmstp.exe

pid	process
3148	Explorer.EXE

pid	process
4724	MSBuild.exe
4724	MSBuild.exe
4724	MSBuild.exe
3640	cmstp.exe
3640	cmstp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exepowershell.exeMSBuild.execmstp.exe

description	pid	process
Token: SeDebugPrivilege	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe
Token: SeDebugPrivilege	2428	powershell.exe
Token: SeDebugPrivilege	4724	MSBuild.exe
Token: SeDebugPrivilege	3640	cmstp.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1040 wrote to memory of 2428	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	powershell.exe
PID 1040 wrote to memory of 2428	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	powershell.exe
PID 1040 wrote to memory of 2428	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	powershell.exe
PID 1040 wrote to memory of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 1040 wrote to memory of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 1040 wrote to memory of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 1040 wrote to memory of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 1040 wrote to memory of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 1040 wrote to memory of 4724	1040	11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe	MSBuild.exe
PID 3148 wrote to memory of 3640	3148	Explorer.EXE	cmstp.exe
PID 3148 wrote to memory of 3640	3148	Explorer.EXE	cmstp.exe
PID 3148 wrote to memory of 3640	3148	Explorer.EXE	cmstp.exe
PID 3640 wrote to memory of 2492	3640	cmstp.exe	cmd.exe
PID 3640 wrote to memory of 2492	3640	cmstp.exe	cmd.exe
PID 3640 wrote to memory of 2492	3640	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3148

C:\Users\Admin\AppData\Local\Temp\11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe
"C:\Users\Admin\AppData\Local\Temp\11f78a6f1d2cc4587778143bdc8b011ca509978c26ba60bd41fe74bd6773444d.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2428

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:4724

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:2492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ojtx5xrm.ltl.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1040-134-0x0000000005D30000-0x00000000062D4000-memory.dmp

Filesize
5.6MB

Download
memory/1040-135-0x0000000005820000-0x00000000058B2000-memory.dmp

Filesize
584KB

Download
memory/1040-136-0x00000000059B0000-0x00000000059BA000-memory.dmp

Filesize
40KB

Download
memory/1040-137-0x0000000005A30000-0x0000000005A40000-memory.dmp

Filesize
64KB

Download
memory/1040-138-0x0000000007A70000-0x0000000007A92000-memory.dmp

Filesize
136KB

Download
memory/1040-158-0x0000000005A30000-0x0000000005A40000-memory.dmp

Filesize
64KB

Download
memory/1040-133-0x0000000000D90000-0x0000000000E4C000-memory.dmp

Filesize
752KB

Download
memory/2428-157-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/2428-139-0x0000000002B30000-0x0000000002B66000-memory.dmp

Filesize
216KB

Download
memory/2428-148-0x0000000005E00000-0x0000000005E66000-memory.dmp

Filesize
408KB

Download
memory/2428-141-0x00000000057D0000-0x0000000005DF8000-memory.dmp

Filesize
6.2MB

Download
memory/2428-153-0x0000000006430000-0x000000000644E000-memory.dmp

Filesize
120KB

Download
memory/2428-154-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/2428-155-0x0000000007AD0000-0x000000000814A000-memory.dmp

Filesize
6.5MB

Download
memory/2428-156-0x0000000006930000-0x000000000694A000-memory.dmp

Filesize
104KB

Download
memory/2428-140-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/2428-142-0x00000000056A0000-0x0000000005706000-memory.dmp

Filesize
408KB

Download
memory/2428-159-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/2428-160-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/2428-161-0x0000000002B20000-0x0000000002B30000-memory.dmp

Filesize
64KB

Download
memory/3148-183-0x0000000002C40000-0x0000000002D2E000-memory.dmp

Filesize
952KB

Download
memory/3148-181-0x0000000002C40000-0x0000000002D2E000-memory.dmp

Filesize
952KB

Download
memory/3148-180-0x0000000002C40000-0x0000000002D2E000-memory.dmp

Filesize
952KB

Download
memory/3148-172-0x0000000008140000-0x000000000827C000-memory.dmp

Filesize
1.2MB

Download
memory/3640-174-0x0000000000C30000-0x0000000000C46000-memory.dmp

Filesize
88KB

Download
memory/3640-173-0x0000000000C30000-0x0000000000C46000-memory.dmp

Filesize
88KB

Download
memory/3640-175-0x0000000000F60000-0x0000000000F8F000-memory.dmp

Filesize
188KB

Download
memory/3640-176-0x0000000003120000-0x000000000346A000-memory.dmp

Filesize
3.3MB

Download
memory/3640-177-0x0000000000F60000-0x0000000000F8F000-memory.dmp

Filesize
188KB

Download
memory/3640-179-0x0000000002E80000-0x0000000002F13000-memory.dmp

Filesize
588KB

Download
memory/4724-170-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4724-171-0x0000000000FE0000-0x0000000000FF4000-memory.dmp

Filesize
80KB

Download
memory/4724-169-0x00000000014A0000-0x00000000017EA000-memory.dmp

Filesize
3.3MB

Download
memory/4724-166-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads