formbook | f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f

General

Target

f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exe
Size

301KB
MD5

542ef4a811e2fa45e96efe1602acd737
SHA1

116ae7e038b75fcee7ac7ddc33f96f981c0e81a7
SHA256

f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f
SHA512

5fa0fd179e7fe6157aed9766281d74dedbef4ce52b287634550f3b11bd29ff08081fbc3590bd435ff6846d4018c84d2a76aa2010b220023654b873c46a6c566c
SSDEEP

6144:TYa6RWpn++a1jQdqOgTSZ6i7vJYnmb7qEPDRtmfGe8C9jxIihLY2XJg:TYDWp++UEEOgmZ6uJwmb7q0DRtmfoC9s

Score

10^/10

formbook sa79 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sa79

Decoy

aidigify.com

angelavamundson.xyz

glicotoday.fun

agencyforbuyers.com

blacklifecoachquiz.com

4e6aqw.site

huawei1990.com

diyetcay.online

chesirechefs.co.uk

generalhospitaleu.africa

hfewha.xyz

lemons2cents.com

rahilprakash.com

kave.tech

netlexfrance.net

youthexsa.africa

car-covers-40809.com

bambooactive.store

fotobugil48.com

kuhler.club

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/1332-142-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1332-146-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3904-154-0x0000000000940000-0x000000000096F000-memory.dmp	formbook
behavioral1/memory/3904-156-0x0000000000940000-0x000000000096F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

Processes:

omrjw.exeomrjw.exe

pid process

4864 omrjw.exe
1332 omrjw.exe

pid	process
4864	omrjw.exe
1332	omrjw.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

omrjw.exeomrjw.exesystray.exe

description	pid	process	target process
PID 4864 set thread context of 1332	4864	omrjw.exe	omrjw.exe
PID 1332 set thread context of 3148	1332	omrjw.exe	Explorer.EXE
PID 3904 set thread context of 3148	3904	systray.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 60 IoCs

Processes:

omrjw.exesystray.exe

pid	process
1332	omrjw.exe
1332	omrjw.exe
1332	omrjw.exe
1332	omrjw.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe
3904	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3148 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

omrjw.exeomrjw.exesystray.exe

pid process

4864 omrjw.exe
1332 omrjw.exe
1332 omrjw.exe
1332 omrjw.exe
3904 systray.exe
3904 systray.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

omrjw.exesystray.exe

description pid process

Token: SeDebugPrivilege 1332 omrjw.exe
Token: SeDebugPrivilege 3904 systray.exe

pid	process
3148	Explorer.EXE

pid	process
4864	omrjw.exe
1332	omrjw.exe
1332	omrjw.exe
1332	omrjw.exe
3904	systray.exe
3904	systray.exe

description	pid	process
Token: SeDebugPrivilege	1332	omrjw.exe
Token: SeDebugPrivilege	3904	systray.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exeomrjw.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 4928 wrote to memory of 4864	4928	f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exe	omrjw.exe
PID 4928 wrote to memory of 4864	4928	f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exe	omrjw.exe
PID 4928 wrote to memory of 4864	4928	f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exe	omrjw.exe
PID 4864 wrote to memory of 1332	4864	omrjw.exe	omrjw.exe
PID 4864 wrote to memory of 1332	4864	omrjw.exe	omrjw.exe
PID 4864 wrote to memory of 1332	4864	omrjw.exe	omrjw.exe
PID 4864 wrote to memory of 1332	4864	omrjw.exe	omrjw.exe
PID 3148 wrote to memory of 3904	3148	Explorer.EXE	systray.exe
PID 3148 wrote to memory of 3904	3148	Explorer.EXE	systray.exe
PID 3148 wrote to memory of 3904	3148	Explorer.EXE	systray.exe
PID 3904 wrote to memory of 3700	3904	systray.exe	cmd.exe
PID 3904 wrote to memory of 3700	3904	systray.exe	cmd.exe
PID 3904 wrote to memory of 3700	3904	systray.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\f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exe
"C:\Users\Admin\AppData\Local\Temp\f3b8435e7359411cefb4d6c762550f4881195a2ec0cb035da5737c4b4891fb6f.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4928

C:\Users\Admin\AppData\Local\Temp\omrjw.exe
"C:\Users\Admin\AppData\Local\Temp\omrjw.exe" C:\Users\Admin\AppData\Local\Temp\lnbvfzmz.kjd
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4864

C:\Users\Admin\AppData\Local\Temp\omrjw.exe
"C:\Users\Admin\AppData\Local\Temp\omrjw.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1332

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.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:\Users\Admin\AppData\Local\Temp\omrjw.exe"
3⤵
PID:3700

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\lnbvfzmz.kjd
Filesize
5KB

MD5
6708008ed1049596aea130d698b95b72

SHA1
cd85c88ca9bcdf443b2618e58602bc5da2ab2606

SHA256
2c8cab39aba9cb704c658e1f2174319e645f1249b8bd4b996569daba4b877cdd

SHA512
cb506c5bf424465937a836996a35bf3a2625f3de6f7b9ab1a76b8f9245f387a5a6866eca009345782c1e96adb1c1610c73ae179feac11f409fe5bd1eea12e485

Download Submit
C:\Users\Admin\AppData\Local\Temp\omrjw.exe
Filesize
159KB

MD5
5ae8e4fca84468df1846f5a3a2fbf24f

SHA1
1a4ef0d31bd8586986b8c99e69755a55bb9d20b5

SHA256
40c5f58f008ac0a8afda1b37bc1c6fa4a8f7e748d957bc54a9195d06bcaf8611

SHA512
3328b0a8b3b92f807e4f6aa4c59bf0f97c9aecbfdd4a66555fa3d1ea1e0bb49128dee76ec97c44b192b301716a0f2ce9f5d258ba25bfbdec5619ccea6e07c8f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\omrjw.exe
Filesize
159KB

MD5
5ae8e4fca84468df1846f5a3a2fbf24f

SHA1
1a4ef0d31bd8586986b8c99e69755a55bb9d20b5

SHA256
40c5f58f008ac0a8afda1b37bc1c6fa4a8f7e748d957bc54a9195d06bcaf8611

SHA512
3328b0a8b3b92f807e4f6aa4c59bf0f97c9aecbfdd4a66555fa3d1ea1e0bb49128dee76ec97c44b192b301716a0f2ce9f5d258ba25bfbdec5619ccea6e07c8f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\omrjw.exe
Filesize
159KB

MD5
5ae8e4fca84468df1846f5a3a2fbf24f

SHA1
1a4ef0d31bd8586986b8c99e69755a55bb9d20b5

SHA256
40c5f58f008ac0a8afda1b37bc1c6fa4a8f7e748d957bc54a9195d06bcaf8611

SHA512
3328b0a8b3b92f807e4f6aa4c59bf0f97c9aecbfdd4a66555fa3d1ea1e0bb49128dee76ec97c44b192b301716a0f2ce9f5d258ba25bfbdec5619ccea6e07c8f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\pczmt.s
Filesize
205KB

MD5
4dd6535840793a7f5b71ee849a03b850

SHA1
ef2e3c0890ecec630cf8d544be1715e4c3c0fd90

SHA256
95703b208c0c156d13995204ecb4180cddc134345cc2ebfed722d2480fa07122

SHA512
3c31b4161c5ea16888d944311525fbf04acd55440bfcf6be62d2c882ad297bd90e64ea5b7f2e930c13a42ce9e2993128ac595bf947f9ef67969931754c8570f3

Download Submit
memory/1332-148-0x00000000006D0000-0x00000000006E4000-memory.dmp

Filesize
80KB

Download
memory/1332-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1332-146-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1332-147-0x0000000000A40000-0x0000000000D8A000-memory.dmp

Filesize
3.3MB

Download
memory/3148-149-0x0000000002520000-0x000000000263B000-memory.dmp

Filesize
1.1MB

Download
memory/3148-157-0x0000000002520000-0x000000000263B000-memory.dmp

Filesize
1.1MB

Download
memory/3148-160-0x0000000002640000-0x00000000026D9000-memory.dmp

Filesize
612KB

Download
memory/3148-161-0x0000000002640000-0x00000000026D9000-memory.dmp

Filesize
612KB

Download
memory/3148-163-0x0000000002640000-0x00000000026D9000-memory.dmp

Filesize
612KB

Download
memory/3904-151-0x0000000000C60000-0x0000000000C66000-memory.dmp

Filesize
24KB

Download
memory/3904-153-0x0000000000C60000-0x0000000000C66000-memory.dmp

Filesize
24KB

Download
memory/3904-154-0x0000000000940000-0x000000000096F000-memory.dmp

Filesize
188KB

Download
memory/3904-155-0x0000000002B50000-0x0000000002E9A000-memory.dmp

Filesize
3.3MB

Download
memory/3904-156-0x0000000000940000-0x000000000096F000-memory.dmp

Filesize
188KB

Download
memory/3904-159-0x00000000028A0000-0x0000000002933000-memory.dmp

Filesize
588KB

Download
memory/4864-140-0x00000000004A0000-0x00000000004A2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads