formbook | 7fc92c4ae5d4d9047a70459054694e6c94e86b979463564f8fb7da9bc34b279b

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 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

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	PO.41022.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2216 set thread context of 1500	2216	PO.41022.pdf.exe	94
PID 1500 set thread context of 3008	1500	PO.41022.pdf.exe	49
PID 1712 set thread context of 3008	1712	colorcpl.exe	49

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
2216	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1712	colorcpl.exe
1712	colorcpl.exe
1712	colorcpl.exe
1712	colorcpl.exe
1712	colorcpl.exe
1712	colorcpl.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1500	PO.41022.pdf.exe
1712	colorcpl.exe
1712	colorcpl.exe
1712	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2216	PO.41022.pdf.exe
Token: SeDebugPrivilege	1500	PO.41022.pdf.exe
Token: SeDebugPrivilege	1712	colorcpl.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2216	PO.41022.pdf.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2216	PO.41022.pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 2500	2216	PO.41022.pdf.exe	92
PID 2216 wrote to memory of 2500	2216	PO.41022.pdf.exe	92
PID 2216 wrote to memory of 2500	2216	PO.41022.pdf.exe	92
PID 2216 wrote to memory of 3844	2216	PO.41022.pdf.exe	93
PID 2216 wrote to memory of 3844	2216	PO.41022.pdf.exe	93
PID 2216 wrote to memory of 3844	2216	PO.41022.pdf.exe	93
PID 2216 wrote to memory of 1500	2216	PO.41022.pdf.exe	94
PID 2216 wrote to memory of 1500	2216	PO.41022.pdf.exe	94
PID 2216 wrote to memory of 1500	2216	PO.41022.pdf.exe	94
PID 2216 wrote to memory of 1500	2216	PO.41022.pdf.exe	94
PID 2216 wrote to memory of 1500	2216	PO.41022.pdf.exe	94
PID 2216 wrote to memory of 1500	2216	PO.41022.pdf.exe	94
PID 3008 wrote to memory of 1712	3008	Explorer.EXE	95
PID 3008 wrote to memory of 1712	3008	Explorer.EXE	95
PID 3008 wrote to memory of 1712	3008	Explorer.EXE	95
PID 1712 wrote to memory of 4860	1712	colorcpl.exe	96
PID 1712 wrote to memory of 4860	1712	colorcpl.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3008
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe"
    3⤵
    PID:2500
- - C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.41022.pdf.exe"
    3⤵
    PID:3844
- - 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:1500
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4860

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

memory/1500-140-0x0000000000000000-mapping.dmp

Download
memory/1500-151-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1500-150-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-147-0x0000000000ED0000-0x0000000000EE0000-memory.dmp

Filesize
64KB

Download
memory/1500-146-0x0000000000F10000-0x000000000125A000-memory.dmp

Filesize
3.3MB

Download
memory/1500-143-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-144-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1500-141-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1712-149-0x0000000000000000-mapping.dmp

Download
memory/1712-158-0x0000000000C10000-0x0000000000C3D000-memory.dmp

Filesize
180KB

Download
memory/1712-156-0x0000000002B30000-0x0000000002BBF000-memory.dmp

Filesize
572KB

Download
memory/1712-154-0x0000000000C10000-0x0000000000C3D000-memory.dmp

Filesize
180KB

Download
memory/1712-155-0x0000000002BE0000-0x0000000002F2A000-memory.dmp

Filesize
3.3MB

Download
memory/1712-153-0x0000000000FB0000-0x0000000000FC9000-memory.dmp

Filesize
100KB

Download
memory/2216-132-0x00000000000F0000-0x000000000020E000-memory.dmp

Filesize
1.1MB

Download
memory/2216-137-0x0000000008AD0000-0x0000000008B36000-memory.dmp

Filesize
408KB

Download
memory/2216-136-0x0000000008820000-0x00000000088BC000-memory.dmp

Filesize
624KB

Download
memory/2216-135-0x0000000004D30000-0x0000000004D3A000-memory.dmp

Filesize
40KB

Download
memory/2216-134-0x0000000004C40000-0x0000000004CD2000-memory.dmp

Filesize
584KB

Download
memory/2216-133-0x00000000051F0000-0x0000000005794000-memory.dmp

Filesize
5.6MB

Download
memory/2500-138-0x0000000000000000-mapping.dmp

Download
memory/3008-152-0x0000000007B70000-0x0000000007CA0000-memory.dmp

Filesize
1.2MB

Download
memory/3008-148-0x0000000007B70000-0x0000000007CA0000-memory.dmp

Filesize
1.2MB

Download
memory/3008-157-0x00000000083B0000-0x00000000084F7000-memory.dmp

Filesize
1.3MB

Download
memory/3008-159-0x00000000083B0000-0x00000000084F7000-memory.dmp

Filesize
1.3MB

Download
memory/3844-139-0x0000000000000000-mapping.dmp

Download

Analysis

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