formbook | cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6

Analysis

max time kernel
149s
max time network
150s
platform
windows10_x64
resource
win10-20220414-en
submitted
04-05-2022 07:02

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General

Target

cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exe
Size

214KB
MD5

3f54e149af6d9802c9a03de4157c7621
SHA1

8ba2e29b8ef74315f335d7ca666ec56accd80d8d
SHA256

cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6
SHA512

4f1401b2cac5d3dbda82ffc7c96151401578b3bb592b7b48caee5e362cb458a77b4e701816a3f88dc6db76c731dff53305d1430c6ab594940ac5706c211c0713

Score

10^/10

formbook fw02 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fw02

Decoy

payer-breakers.com

thesiscoper.com

rental-villa.com

scovikinnovations.com

hydh33.com

allmyshit.rest

lovejaclyn.com

vanessaruizwriting.com

dufonddelaclasse.com

kiddee168.com

monumentalmarketsllc.com

musclegainfatloss.com

avida.info

cosmo-wellness.net

dandelionfusedigital.com

oversizeloadbanners.com

konstelle.store

sdjnsbd.com

czoqg.xyz

5p6xljjse1lq.xyz

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1212-210-0x000000000041F150-mapping.dmp	formbook
behavioral1/memory/1212-217-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2924-282-0x0000000000E10000-0x0000000000E3F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

Processes:

dpxyhbjguk.exedpxyhbjguk.exe

pid process

2068 dpxyhbjguk.exe
1212 dpxyhbjguk.exe

pid	process
2068	dpxyhbjguk.exe
1212	dpxyhbjguk.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

dpxyhbjguk.exedpxyhbjguk.exemsiexec.exe

description	pid	process	target process
PID 2068 set thread context of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1212 set thread context of 3032	1212	dpxyhbjguk.exe	Explorer.EXE
PID 2924 set thread context of 3032	2924	msiexec.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 56 IoCs

Processes:

dpxyhbjguk.exemsiexec.exe

pid	process
1212	dpxyhbjguk.exe
1212	dpxyhbjguk.exe
1212	dpxyhbjguk.exe
1212	dpxyhbjguk.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe
2924	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3032 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

dpxyhbjguk.exemsiexec.exe

pid process

1212 dpxyhbjguk.exe
1212 dpxyhbjguk.exe
1212 dpxyhbjguk.exe
2924 msiexec.exe
2924 msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dpxyhbjguk.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 1212 dpxyhbjguk.exe
Token: SeDebugPrivilege 2924 msiexec.exe

pid	process
3032	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1212	dpxyhbjguk.exe
Token: SeDebugPrivilege	2924	msiexec.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exedpxyhbjguk.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 2656 wrote to memory of 2068	2656	cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exe	dpxyhbjguk.exe
PID 2656 wrote to memory of 2068	2656	cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exe	dpxyhbjguk.exe
PID 2656 wrote to memory of 2068	2656	cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exe	dpxyhbjguk.exe
PID 2068 wrote to memory of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 2068 wrote to memory of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 2068 wrote to memory of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 2068 wrote to memory of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 2068 wrote to memory of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 2068 wrote to memory of 1212	2068	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 3032 wrote to memory of 2924	3032	Explorer.EXE	msiexec.exe
PID 3032 wrote to memory of 2924	3032	Explorer.EXE	msiexec.exe
PID 3032 wrote to memory of 2924	3032	Explorer.EXE	msiexec.exe
PID 2924 wrote to memory of 4928	2924	msiexec.exe	cmd.exe
PID 2924 wrote to memory of 4928	2924	msiexec.exe	cmd.exe
PID 2924 wrote to memory of 4928	2924	msiexec.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3032

C:\Users\Admin\AppData\Local\Temp\cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exe
"C:\Users\Admin\AppData\Local\Temp\cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2656

C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe C:\Users\Admin\AppData\Local\Temp\cfrdmrwg
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2068

C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe C:\Users\Admin\AppData\Local\Temp\cfrdmrwg
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1212

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe"
3⤵
PID:4928

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3op6m4d1vcvre
Filesize
184KB

MD5
883e3a371bba46652cef1db30d23e35b

SHA1
334a05dc940245cd8d846ae978e3699136cc3175

SHA256
94f2ee1b267281c5e118469d49a996c8d2a67df7d3e219cf0196cd8512f1834f

SHA512
d3518f5f2ab949c8e89cc1f4e325f1c94648afc30e97b12f048c6d906fa92c1aa575d9e5568cf88d110a02320e4ff3e884f88171e5493469c29aece412327a69

Download Submit
C:\Users\Admin\AppData\Local\Temp\cfrdmrwg
Filesize
5KB

MD5
0208d602cb7743704120e763f9cdfa2b

SHA1
080b53e3eb750f4bc8b1cfe1bea62444b05954a4

SHA256
3aabc70c2694750180a2a4f7e56e389163db8d04d4dba660f8783de8905cf8ce

SHA512
3203adc437ccda7fd71c919e9c5ae6e3b75076441430e1325c3c9cc47ea03f9744ee5cc700185469a0db461aa844501d6e2da0940740f35e370e5883eee036e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
memory/1212-235-0x00000000008E0000-0x0000000000A70000-memory.dmp

Filesize
1.6MB

Download
memory/1212-234-0x0000000000A70000-0x0000000000D90000-memory.dmp

Filesize
3.1MB

Download
memory/1212-217-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1212-210-0x000000000041F150-mapping.dmp

Download
memory/2068-180-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-175-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-181-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-183-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-179-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-178-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-177-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-176-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-174-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-182-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-184-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-172-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-171-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-170-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-169-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-168-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-167-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2068-165-0x0000000000000000-mapping.dmp

Download
memory/2656-138-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-118-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-147-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-148-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-149-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-150-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-151-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-152-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-153-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-154-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-155-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-156-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-157-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-158-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-160-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-159-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-161-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-162-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-163-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-164-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-145-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-144-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-143-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-142-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-141-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-140-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-139-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-146-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-133-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-137-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-136-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-135-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-134-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-132-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-131-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-130-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-129-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-128-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-127-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-126-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-125-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-124-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-123-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-122-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-121-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-120-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-119-0x00000000773B0000-0x000000007753E000-memory.dmp

Filesize
1.6MB

Download
memory/2924-237-0x0000000000000000-mapping.dmp

Download
memory/2924-281-0x00000000010F0000-0x0000000001102000-memory.dmp

Filesize
72KB

Download
memory/2924-282-0x0000000000E10000-0x0000000000E3F000-memory.dmp

Filesize
188KB

Download
memory/2924-289-0x0000000004CF0000-0x0000000005010000-memory.dmp

Filesize
3.1MB

Download
memory/2924-291-0x0000000004B60000-0x0000000004CF0000-memory.dmp

Filesize
1.6MB

Download
memory/3032-236-0x0000000006600000-0x0000000006782000-memory.dmp

Filesize
1.5MB

Download
memory/3032-292-0x0000000002B20000-0x0000000002C09000-memory.dmp

Filesize
932KB

Download
memory/4928-283-0x0000000000000000-mapping.dmp

Download