formbook | e4f345b6b2f824e370ba56b62dbbcad99bc68834e2a35984deee0762c929c4f6

General

Target

INV NO.2350.exe
Size

868KB
MD5

f69ca46a59bc720a3edf4a1c3698418d
SHA1

f0e01c9a9ca63d1b1d507be06bc9aa2c044db500
SHA256

a0b19468a7896874e57b014b28e8d3abd1707e2b52a8ef1bf516d4c1a76a7b42
SHA512

835691dd5cf84e272384d5203b89e18c56f6509e74cb9fc60a4530e8fa27e292c76b91703b75940d1a4df4900e14dca376f494ebbb3ce92f8ee6f24b2de159d6
SSDEEP

12288:exTd+lc9ogYATuMFct1sPdqrQ8IvPHMvUok5pPzoADqjJ5n:Y6ccXhQnPH4k5pejr

Score

10^/10

formbook gski rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

gski

Decoy

w4dqmeRbroucK1d6Rjoieflr

4aOmGT8hdudzUsv7ZSwieflr

3sTC4jMnhzX+pOJNTZ4=

JcH9cI2V8BEeA0eA

doY0NLSYANTXiHt9/fbsP706cA==

KhN1zCT4Nb5T//UnNQ==

y4/RV2RRqNEr0c4nzNWP

x8sfUpcmiXqxdfls0dSN

rlygM3RQmQ7DliRSBQUKpWJ/FuU=

s672RU9HtT3XWaTvdEidsoLRjZb5J5oE

uaT/Znv3O9WfXs8GBluj2Z2szeMP

QvElhI8JUPHBlRsjsodB5GmUzO0W

2uM5rt7BEpcswwJhDA8JnA8=

TDFfhORfvuRP//UnNQ==

MtPNDl4mh1dSxgZs0dSN

ejpoOLXE/Wa7zMwppl3JOt8faA==

8qPraI3lOFSrRmCSR4EnHQc=

+LOpAwtx0LfGnOJNTZ4=

wMQehpwddDxHII+rVCwieflr

8KPhZrjGG//aix1s0dSN

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
7	2028	wscript.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	INV NO.2350.exe

Loads dropped DLL 1 IoCs

pid	Process
2028	wscript.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1500 set thread context of 1552	1500	INV NO.2350.exe	28
PID 1552 set thread context of 1360	1552	INV NO.2350.exe	15
PID 1552 set thread context of 1360	1552	INV NO.2350.exe	15
PID 2028 set thread context of 1360	2028	wscript.exe	15

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1500	INV NO.2350.exe
1552	INV NO.2350.exe
1552	INV NO.2350.exe
1552	INV NO.2350.exe
1552	INV NO.2350.exe
1552	INV NO.2350.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1552	INV NO.2350.exe
1552	INV NO.2350.exe
1552	INV NO.2350.exe
1552	INV NO.2350.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe
2028	wscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	INV NO.2350.exe
Token: SeDebugPrivilege	1552	INV NO.2350.exe
Token: SeDebugPrivilege	2028	wscript.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 1076	1500	INV NO.2350.exe	27
PID 1500 wrote to memory of 1076	1500	INV NO.2350.exe	27
PID 1500 wrote to memory of 1076	1500	INV NO.2350.exe	27
PID 1500 wrote to memory of 1076	1500	INV NO.2350.exe	27
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1500 wrote to memory of 1552	1500	INV NO.2350.exe	28
PID 1360 wrote to memory of 2028	1360	Explorer.EXE	29
PID 1360 wrote to memory of 2028	1360	Explorer.EXE	29
PID 1360 wrote to memory of 2028	1360	Explorer.EXE	29
PID 1360 wrote to memory of 2028	1360	Explorer.EXE	29
PID 2028 wrote to memory of 1536	2028	wscript.exe	32
PID 2028 wrote to memory of 1536	2028	wscript.exe	32
PID 2028 wrote to memory of 1536	2028	wscript.exe	32
PID 2028 wrote to memory of 1536	2028	wscript.exe	32
PID 2028 wrote to memory of 1536	2028	wscript.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\INV NO.2350.exe
  "C:\Users\Admin\AppData\Local\Temp\INV NO.2350.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1500
- - C:\Users\Admin\AppData\Local\Temp\INV NO.2350.exe
    "{path}"
    3⤵
    PID:1076
- - C:\Users\Admin\AppData\Local\Temp\INV NO.2350.exe
    "{path}"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1552
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
849KB

MD5
87f9e5a6318ac1ec5ee05aa94a919d7a

SHA1
7a9956e8de89603dba99772da29493d3fd0fe37d

SHA256
7705b87603e0d772e1753441001fcf1ac2643ee41bf14a8177de2c056628665c

SHA512
c45c03176142918e34f746711e83384572bd6a8ed0a005600aa4a18cf22eade06c76eda190b37db49ec1971c4649e086affd19eee108c5f405df27c0c8cb23d2

Download Submit
memory/1360-70-0x00000000040F0000-0x00000000041C8000-memory.dmp

Filesize
864KB

Download
memory/1360-84-0x0000000003B70000-0x0000000003C09000-memory.dmp

Filesize
612KB

Download
memory/1360-81-0x0000000003B70000-0x0000000003C09000-memory.dmp

Filesize
612KB

Download
memory/1360-73-0x0000000006090000-0x00000000061F6000-memory.dmp

Filesize
1.4MB

Download
memory/1500-55-0x0000000075B41000-0x0000000075B43000-memory.dmp

Filesize
8KB

Download
memory/1500-56-0x0000000000380000-0x00000000003A0000-memory.dmp

Filesize
128KB

Download
memory/1500-57-0x0000000005CF0000-0x0000000005D7C000-memory.dmp

Filesize
560KB

Download
memory/1500-58-0x0000000000930000-0x0000000000964000-memory.dmp

Filesize
208KB

Download
memory/1500-54-0x0000000000C70000-0x0000000000D50000-memory.dmp

Filesize
896KB

Download
memory/1552-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-67-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1552-69-0x00000000000F0000-0x0000000000100000-memory.dmp

Filesize
64KB

Download
memory/1552-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-72-0x0000000000130000-0x0000000000140000-memory.dmp

Filesize
64KB

Download
memory/1552-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-75-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1552-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-68-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/1552-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-63-0x00000000004012B0-mapping.dmp

Download
memory/2028-79-0x0000000000AB0000-0x0000000000DB3000-memory.dmp

Filesize
3.0MB

Download
memory/2028-80-0x0000000000A10000-0x0000000000A9F000-memory.dmp

Filesize
572KB

Download
memory/2028-78-0x00000000000B0000-0x00000000000DD000-memory.dmp

Filesize
180KB

Download
memory/2028-82-0x00000000000B0000-0x00000000000DD000-memory.dmp

Filesize
180KB

Download
memory/2028-77-0x0000000000F30000-0x0000000000F56000-memory.dmp

Filesize
152KB

Download
memory/2028-74-0x0000000000000000-mapping.dmp

Download

Analysis

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