formbook | c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4

Analysis

max time kernel
152s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
04-04-2023 15:36

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General

Target

c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe
Size

5.0MB
MD5

5288674c2d9557bd89a0aab4869f1f60
SHA1

687b6337728a7e4fa646bfd1b0ddce84bcedf23d
SHA256

c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4
SHA512

5305880363570bd0da5ae95fca7b54dfd70e4cb1a090c72a46420d4ce76bdb6b1b56753ef36a57d26cc06012d3028fbbb11c9afa0c6e33ec59b84caf27ad3eff
SSDEEP

49152:RsOS3uqy5zwcdnOJgYGT0f7fVGyfxHN5ixWRAhMGOuhSTDMj:0ebweOJF7Q

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
behavioral1/memory/2528-163-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2528-166-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3904-173-0x00000000003B0000-0x00000000003DF000-memory.dmp	formbook
behavioral1/memory/3904-175-0x00000000003B0000-0x00000000003DF000-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:

c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exeMSBuild.exeexplorer.exe

description	pid	process	target process
PID 3612 set thread context of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 2528 set thread context of 3152	2528	MSBuild.exe	Explorer.EXE
PID 3904 set thread context of 3152	3904	explorer.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 50 IoCs

Processes:

powershell.exeMSBuild.exeexplorer.exe

pid	process
2236	powershell.exe
2236	powershell.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe
3904	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3152 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

MSBuild.exeexplorer.exe

pid process

2528 MSBuild.exe
2528 MSBuild.exe
2528 MSBuild.exe
3904 explorer.exe
3904 explorer.exe

pid	process
3152	Explorer.EXE

pid	process
2528	MSBuild.exe
2528	MSBuild.exe
2528	MSBuild.exe
3904	explorer.exe
3904	explorer.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exepowershell.exeMSBuild.exeexplorer.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe
Token: SeDebugPrivilege	2236	powershell.exe
Token: SeDebugPrivilege	2528	MSBuild.exe
Token: SeDebugPrivilege	3904	explorer.exe
Token: SeShutdownPrivilege	3152	Explorer.EXE
Token: SeCreatePagefilePrivilege	3152	Explorer.EXE
Token: SeShutdownPrivilege	3152	Explorer.EXE
Token: SeCreatePagefilePrivilege	3152	Explorer.EXE
Token: SeShutdownPrivilege	3152	Explorer.EXE
Token: SeCreatePagefilePrivilege	3152	Explorer.EXE
Token: SeShutdownPrivilege	3152	Explorer.EXE
Token: SeCreatePagefilePrivilege	3152	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 3612 wrote to memory of 2236	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	powershell.exe
PID 3612 wrote to memory of 2236	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	powershell.exe
PID 3612 wrote to memory of 2236	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	powershell.exe
PID 3612 wrote to memory of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 3612 wrote to memory of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 3612 wrote to memory of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 3612 wrote to memory of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 3612 wrote to memory of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 3612 wrote to memory of 2528	3612	c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe	MSBuild.exe
PID 3152 wrote to memory of 3904	3152	Explorer.EXE	explorer.exe
PID 3152 wrote to memory of 3904	3152	Explorer.EXE	explorer.exe
PID 3152 wrote to memory of 3904	3152	Explorer.EXE	explorer.exe
PID 3904 wrote to memory of 4036	3904	explorer.exe	cmd.exe
PID 3904 wrote to memory of 4036	3904	explorer.exe	cmd.exe
PID 3904 wrote to memory of 4036	3904	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152

C:\Users\Admin\AppData\Local\Temp\c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe
"C:\Users\Admin\AppData\Local\Temp\c9bdb8c092e5af89aacb7feae545fa43da02c84f6ac74a3a60cef3f9076c0ca4.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3612

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:2236

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:2528

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3904

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:4036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rbhvmstl.2zb.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2236-144-0x0000000005840000-0x00000000058A6000-memory.dmp

Filesize
408KB

Download
memory/2236-149-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/2236-153-0x0000000006360000-0x000000000637A000-memory.dmp

Filesize
104KB

Download
memory/2236-158-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/2236-154-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/2236-150-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/2236-151-0x0000000005E50000-0x0000000005E6E000-memory.dmp

Filesize
120KB

Download
memory/2236-156-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/2236-138-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/2236-137-0x0000000004F00000-0x0000000005528000-memory.dmp

Filesize
6.2MB

Download
memory/2236-152-0x0000000007490000-0x0000000007B0A000-memory.dmp

Filesize
6.5MB

Download
memory/2236-136-0x0000000004880000-0x00000000048B6000-memory.dmp

Filesize
216KB

Download
memory/2236-157-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/2528-167-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/2528-168-0x0000000000EC0000-0x0000000000ED4000-memory.dmp

Filesize
80KB

Download
memory/2528-166-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2528-163-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3152-185-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-196-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-225-0x0000000001060000-0x0000000001062000-memory.dmp

Filesize
8KB

Download
memory/3152-169-0x00000000084C0000-0x00000000085EE000-memory.dmp

Filesize
1.2MB

Download
memory/3152-224-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-223-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-222-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-221-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-220-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-219-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-218-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-178-0x00000000085F0000-0x0000000008734000-memory.dmp

Filesize
1.3MB

Download
memory/3152-179-0x00000000085F0000-0x0000000008734000-memory.dmp

Filesize
1.3MB

Download
memory/3152-181-0x00000000085F0000-0x0000000008734000-memory.dmp

Filesize
1.3MB

Download
memory/3152-217-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-186-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-187-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-188-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-189-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-190-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-191-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-192-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-193-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-194-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-195-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-216-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-197-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-198-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-199-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-200-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-201-0x00000000085F0000-0x0000000008734000-memory.dmp

Filesize
1.3MB

Download
memory/3152-203-0x00000000085F0000-0x0000000008734000-memory.dmp

Filesize
1.3MB

Download
memory/3152-209-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-210-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-211-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-212-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-213-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-214-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3152-215-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download
memory/3612-135-0x0000000006930000-0x0000000006952000-memory.dmp

Filesize
136KB

Download
memory/3612-133-0x0000000000360000-0x0000000000860000-memory.dmp

Filesize
5.0MB

Download
memory/3612-155-0x0000000005350000-0x0000000005360000-memory.dmp

Filesize
64KB

Download
memory/3612-134-0x0000000005350000-0x0000000005360000-memory.dmp

Filesize
64KB

Download
memory/3904-177-0x0000000002800000-0x0000000002893000-memory.dmp

Filesize
588KB

Download
memory/3904-175-0x00000000003B0000-0x00000000003DF000-memory.dmp

Filesize
188KB

Download
memory/3904-174-0x00000000029C0000-0x0000000002D0A000-memory.dmp

Filesize
3.3MB

Download
memory/3904-173-0x00000000003B0000-0x00000000003DF000-memory.dmp

Filesize
188KB

Download
memory/3904-172-0x0000000000680000-0x0000000000AB3000-memory.dmp

Filesize
4.2MB

Download
memory/3904-170-0x0000000000680000-0x0000000000AB3000-memory.dmp

Filesize
4.2MB

Download