formbook | 1e76071fd87642e4070b75b2f542d65d304dcbb8482e795610bd53b34c54bcb8

General

Target

GHXCGHXCGJXC.exe
Size

260KB
MD5

a77431e2d2b1d029280cf0a47b113105
SHA1

f87716cb580a6b5a48a8c3a9112abf070353eaf4
SHA256

1e76071fd87642e4070b75b2f542d65d304dcbb8482e795610bd53b34c54bcb8
SHA512

7c3bb123b65744851b37ec612f9c2541e1e4ee092069b1d9acd14e462251cfe35b471abb3da1c6669c1cfeb3ea677da9e708f1b37728b77e34e8a49b1f2793f8
SSDEEP

6144:sTr7LaS2zIxSM8ZSPSl940ofQoEytRm5Krk6X8Plx:snS5zIxeu0ofOys6X8Plx

Score

10^/10

formbook pgnt rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

pgnt

Decoy

0WG18LbM4lR9iqMRa4nlBzTb

jcfGYzPgZTqFZVO9FV2yIw==

laIfrdSC8/4CNg==

Q73ilev5GIWuOrAAFV2yIw==

Q2u/pMw7pv4sPA==

TbqvIUHwlQscPo0HFV2yIw==

8PNWfGPyE8n0IQ==

WtgROxXzvY2L

PryaRBNjm4eP

Y9Hdi06Cry1um9Sj68YAu1o=

3Gulyp7CMQtR78jvLkk=

JJ3GasTVTCRQT6Tfz6S6GlI=

RnS42bhb9tI0R6UpD6wOxriNxw==

he1mi2sOGfzTRGHnuA==

eaYjCtjxVjdU5XLRtBMBLKk9quA=

k9rTeEqYzzw8WaTfz6S6GlI=

5luVQwe2vJWKEAiMdF4=

MGW14L9OVk5Y5TaR6w/DqdhYxXVY

mAsYz6k6sQkDC0/DoHj9t1RPWLSgFQ==

y5klhuMbE8n0IQ==

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1068	chkdsk.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1108 set thread context of 632	1108	GHXCGHXCGJXC.exe	27
PID 632 set thread context of 1248	632	Regsvcs.exe	9
PID 632 set thread context of 1248	632	Regsvcs.exe	9
PID 1068 set thread context of 1248	1068	chkdsk.exe	9

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1563773381-2037468142-1146002597-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
632	Regsvcs.exe
632	Regsvcs.exe
632	Regsvcs.exe
632	Regsvcs.exe
632	Regsvcs.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1248	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
632	Regsvcs.exe
632	Regsvcs.exe
632	Regsvcs.exe
632	Regsvcs.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe
1068	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	632	Regsvcs.exe
Token: SeDebugPrivilege	1068	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1248	Explorer.EXE
1248	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1248	Explorer.EXE
1248	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1108 wrote to memory of 632	1108	GHXCGHXCGJXC.exe	27
PID 1248 wrote to memory of 1068	1248	Explorer.EXE	28
PID 1248 wrote to memory of 1068	1248	Explorer.EXE	28
PID 1248 wrote to memory of 1068	1248	Explorer.EXE	28
PID 1248 wrote to memory of 1068	1248	Explorer.EXE	28
PID 1068 wrote to memory of 1532	1068	chkdsk.exe	31
PID 1068 wrote to memory of 1532	1068	chkdsk.exe	31
PID 1068 wrote to memory of 1532	1068	chkdsk.exe	31
PID 1068 wrote to memory of 1532	1068	chkdsk.exe	31
PID 1068 wrote to memory of 1532	1068	chkdsk.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\GHXCGHXCGJXC.exe
  "C:\Users\Admin\AppData\Local\Temp\GHXCGHXCGJXC.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:632
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Enumerates system info in registry
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\v0mtuf.zip

Filesize
435KB

MD5
c42ec8f35c6a06666e6ad54471a2728b

SHA1
c3cc57a816927fa616616939b4b7a63c2322cfa1

SHA256
22bb304aab3ec7a51fc4dc7749f304bbe01c5ec014144fbc8f86012dc3b0708b

SHA512
6fe9a3c3f861663b6408fd5136d202835a89344072996dd65dda14fa04707662a26d0c6ed482fd0606a270943112d9effc07424af90621094f6fbb88c8ff7eae

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

Filesize
832KB

MD5
07fb6d31f37fb1b4164bef301306c288

SHA1
4cb41af6d63a07324ef6b18b1a1f43ce94e25626

SHA256
06ddf0a370af00d994824605a8e1307ba138f89b2d864539f0d19e8804edac02

SHA512
cab4a7c5805b80851aba5f2c9b001fabc1416f6648d891f49eacc81fe79287c5baa01306a42298da722750b812a4ea85388ffae9200dcf656dd1d5b5b9323353

Download Submit
memory/632-68-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download
memory/632-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/632-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/632-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/632-58-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/632-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/632-64-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/632-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/632-65-0x0000000000100000-0x0000000000110000-memory.dmp

Filesize
64KB

Download
memory/632-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1068-71-0x00000000006B0000-0x00000000006B7000-memory.dmp

Filesize
28KB

Download
memory/1068-125-0x0000000061E00000-0x0000000061EBD000-memory.dmp

Filesize
756KB

Download
memory/1068-72-0x00000000006B0000-0x00000000006B7000-memory.dmp

Filesize
28KB

Download
memory/1068-73-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1068-74-0x0000000001F70000-0x0000000002273000-memory.dmp

Filesize
3.0MB

Download
memory/1068-76-0x0000000001DE0000-0x0000000001E6F000-memory.dmp

Filesize
572KB

Download
memory/1108-56-0x0000000000150000-0x000000000015A000-memory.dmp

Filesize
40KB

Download
memory/1108-54-0x000000013F480000-0x000000013F4C4000-memory.dmp

Filesize
272KB

Download
memory/1108-55-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1248-75-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1248-78-0x00000000070F0000-0x0000000007232000-memory.dmp

Filesize
1.3MB

Download
memory/1248-80-0x0000000006FD0000-0x00000000070E1000-memory.dmp

Filesize
1.1MB

Download
memory/1248-82-0x00000000070F0000-0x0000000007232000-memory.dmp

Filesize
1.3MB

Download
memory/1248-77-0x00000000070F0000-0x0000000007232000-memory.dmp

Filesize
1.3MB

Download
memory/1248-69-0x0000000006FD0000-0x00000000070E1000-memory.dmp

Filesize
1.1MB

Download
memory/1248-66-0x0000000006C70000-0x0000000006E0C000-memory.dmp

Filesize
1.6MB

Download

Analysis

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