formbook | 34ec91026f270416b178eca1ec533d99c72419d00e2fe364ba7a44c82dbf66f9

General

Target

PO.41022.pdf.exe
Size

1.1MB
MD5

611cac35588e905fd549327d435c80fb
SHA1

f6871a3d076f654bd444ddb5b463ae59751c2236
SHA256

714e4e1608cc5486e6ebbb112c3dda90ce2398d346539ef636adb31d5268ee58
SHA512

2a947a119e143898dafae97eb353bdb18b192a27bcc1fdc224c3960e234fc4a29bdc0606cc53006eca3315665af072bba9542b0858a19b2dc7b20a3d7633fbe6
SSDEEP

12288:sfaK4HTNwJ8KROwE4n332sIxfc3jnTVtjtTLnDTOBPtJ/WzAw+HUzPIvuUa6XyGx:IBFF2sJznT7tfXODJxt0zgWyzWhj

Score

10^/10

formbook tz8t discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

tz8t

Decoy

NFk7MP6QpDFJEJrVpUy0

GEMrXu+Hnm9IKFxy

IT8gJF3/gCxP

7dtVECE6S0wDp06OGg==

kzuhI3D1M9lFyzWhFA==

UVGjAr/aAiVEBPtKKrIHS8c=

LUoV7DnQCbhftSNxAa/sb9o=

gBXNjrxhyASzXx9kAw==

6o0Vl1R+tXIKX8MLl075wvb+

wWleMnYYLapbM/cZKrIHS8c=

mxcAPMpdoFgFWMnluG7HiA==

Lc8s0dmxDB7HJA==

fNexBb7nimQMfDM=

/wFu2LTK4fCH1sEQoIB5gwZYMbig

9ZsAf01ejq1YOX+fR9iK7DQUpO65

kk66JPP8RtSC3lTXoWfy8W8RpInmvB3fWg==

y//p1p2nIgC2Ig==

6csYfkRRU1wPp06OGg==

OjvSTCtGd5JAKOFmIMGghg==

Cr/W0C7J+w5GXx9kAw==

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\International\Geo\Nation	PO.41022.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 576 set thread context of 2416	576	PO.41022.pdf.exe	31
PID 2416 set thread context of 1204	2416	PO.41022.pdf.exe	21
PID 2684 set thread context of 1204	2684	cmd.exe	21

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.41022.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
576	PO.41022.pdf.exe
576	PO.41022.pdf.exe
576	PO.41022.pdf.exe
576	PO.41022.pdf.exe
576	PO.41022.pdf.exe
576	PO.41022.pdf.exe
576	PO.41022.pdf.exe
2416	PO.41022.pdf.exe
2416	PO.41022.pdf.exe
2416	PO.41022.pdf.exe
2416	PO.41022.pdf.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe
2684	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2416	PO.41022.pdf.exe
2416	PO.41022.pdf.exe
2416	PO.41022.pdf.exe
2684	cmd.exe
2684	cmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	576	PO.41022.pdf.exe
Token: SeDebugPrivilege	2416	PO.41022.pdf.exe
Token: SeDebugPrivilege	2684	cmd.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
576	PO.41022.pdf.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
576	PO.41022.pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 576 wrote to memory of 2416	576	PO.41022.pdf.exe	31
PID 1204 wrote to memory of 2684	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2684	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2684	1204	Explorer.EXE	32
PID 1204 wrote to memory of 2684	1204	Explorer.EXE	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:576
- - C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/576-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/576-1-0x0000000000E70000-0x0000000000F8E000-memory.dmp

Filesize
1.1MB

Download
memory/576-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/576-3-0x0000000000630000-0x000000000064C000-memory.dmp

Filesize
112KB

Download
memory/576-4-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/576-5-0x0000000000730000-0x000000000073C000-memory.dmp

Filesize
48KB

Download
memory/576-6-0x0000000008300000-0x00000000083C8000-memory.dmp

Filesize
800KB

Download
memory/576-7-0x0000000004D00000-0x0000000004D70000-memory.dmp

Filesize
448KB

Download
memory/576-18-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-28-0x0000000005260000-0x000000000536D000-memory.dmp

Filesize
1.1MB

Download
memory/1204-24-0x0000000005260000-0x000000000536D000-memory.dmp

Filesize
1.1MB

Download
memory/2416-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2416-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2416-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2416-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2416-19-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/2416-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2416-22-0x0000000000110000-0x0000000000120000-memory.dmp

Filesize
64KB

Download
memory/2416-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2416-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2416-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2684-25-0x000000004AC60000-0x000000004ACAC000-memory.dmp

Filesize
304KB

Download
memory/2684-26-0x000000004AC60000-0x000000004ACAC000-memory.dmp

Filesize
304KB

Download
memory/2684-27-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download

Analysis

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