formbook | 62afb1cbcacb77aa2ca99cc55c0e3536738415289f53c4a3a57d9b9cc08ee5ab

Analysis

max time kernel
150s
max time network
6s
platform
windows7_x64
resource
win7v200722
submitted
13/08/2020, 06:57

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General

Target
6605701.xls .exe
Size 543KB
Sample200813-2vdppdpqn2
SHA256 62afb1cbcacb77aa2ca99cc55c0e3536738415289f53c4a3a57d9b9cc08ee5ab
MD5 38a00ca13354ab0a81921c70f57003b1
SHA1 2c113263ab3ae8a9d8cc8fd717f2eefa98c6a65a
SHA512 05bc9fb368086401e87a1253f03640005ab744fe7c59ce7134bc1cd4363974713a1e7244378e39493bb6e2a46f6d68b0974f63eee2f221909a1c7edb8fca75eb
MD5 SHA1 SHA512

Score

10^/10

agilenet rat persistence trojan spyware stealer formbook

Malware Config

Extracted

Family

formbook

http://www.mage-cart.info/u4xn/

Decoy

yanghl.com
decorvea.online
xn--fjq92bw28b1tloj5a39d42h.com
yumler.info
laketravisautosales.net
zjnrgx.info
harrimanpm.com
dell-yh.com
eze.fitness
pritpritzoom.com
hackgarage.com
mydomterry.net
castrotom.com
coffeecosplay.com
wsfg-hk.com
crystalbeachstudio.com
bestofreadbook.win
sutasz.info
yunfengyue.com
h11011.com
hfcwf.com
hate.ltd
ensembleharmonie.com
reikimaestro.com
ipz-127.com
totalunch.com
sn-iz.com
sanlorenzosuites.net
androidhunts.com
ci3tmsu.top
naciparaemprender.com
power-up-premium.site
news3105.pictures
netcone.net
ferimen.com
coffeeklat.com
vrtrainsimulator.com
jialingdi.net
cloudsupport-service.info
menshealthreport.net
my-agroparts.com
hitoketa-m.net
fer666.com
a36990.com
jeromesglobal.com
adimaio.com
carbapenem-resistant-option.com
samlinegroupuk.com
rokenstudio.com
koreayu61.com
qiyefanhe.com
ilovedelilah.com
yubeibaby.com
shopvoyeu.com
smilesandblossoms.com
dqicwa.info
jedichain.com
aquaterm.online
kabonyhandmade.com
agmtraders.com
musicfashionmust.com
dotrucksmax.live
getreadyherenow4.info
thequeenbeeteam.net

Signatures

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

Formbook Payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/928-20-0x0000000000400000-0x0000000000428000-memory.dmp	formbook
behavioral1/memory/928-20-0x0000000000400000-0x0000000000428000-memory.dmp	formbook
behavioral1/memory/928-21-0x000000000041C9D0-mapping.dmp	formbook
behavioral1/memory/1492-23-0x0000000000000000-mapping.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
1648	smgjy.exe
928	AddInProcess32.exe

Loads dropped DLL 4 IoCs

pid	Process
1680	6605701.xls .exe
1680	6605701.xls .exe
1648	smgjy.exe
1648	smgjy.exe

Obfuscated with Agile.Net obfuscator 2 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1680-3-0x0000000000AB0000-0x0000000000ACC000-memory.dmp	agile_net
behavioral1/memory/1680-3-0x0000000000AB0000-0x0000000000ACC000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-403932158-3302036622-1224131197-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-403932158-3302036622-1224131197-1000\Software\Microsoft\Windows\CurrentVersion\Run\smgjygh = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Local\\smgjy.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1648 set thread context of 928	1648	smgjy.exe	30
PID 928 set thread context of 1224	928	AddInProcess32.exe	20
PID 1492 set thread context of 1224	1492	NETSTAT.EXE	20

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
1492	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
1680	6605701.xls .exe
1680	6605701.xls .exe
1680	6605701.xls .exe
1648	smgjy.exe
1648	smgjy.exe
1648	smgjy.exe
928	AddInProcess32.exe
928	AddInProcess32.exe
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE
1492	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
928	AddInProcess32.exe
928	AddInProcess32.exe
928	AddInProcess32.exe
1492	NETSTAT.EXE
1492	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	6605701.xls .exe
Token: SeDebugPrivilege	1648	smgjy.exe
Token: SeDebugPrivilege	928	AddInProcess32.exe
Token: SeDebugPrivilege	1492	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1896	1680	6605701.xls .exe	24
PID 1680 wrote to memory of 1896	1680	6605701.xls .exe	24
PID 1680 wrote to memory of 1896	1680	6605701.xls .exe	24
PID 1680 wrote to memory of 1896	1680	6605701.xls .exe	24
PID 1896 wrote to memory of 1904	1896	cmd.exe	26
PID 1896 wrote to memory of 1904	1896	cmd.exe	26
PID 1896 wrote to memory of 1904	1896	cmd.exe	26
PID 1896 wrote to memory of 1904	1896	cmd.exe	26
PID 1680 wrote to memory of 1648	1680	6605701.xls .exe	29
PID 1680 wrote to memory of 1648	1680	6605701.xls .exe	29
PID 1680 wrote to memory of 1648	1680	6605701.xls .exe	29
PID 1680 wrote to memory of 1648	1680	6605701.xls .exe	29
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1648 wrote to memory of 928	1648	smgjy.exe	30
PID 1224 wrote to memory of 1492	1224	Explorer.EXE	31
PID 1224 wrote to memory of 1492	1224	Explorer.EXE	31
PID 1224 wrote to memory of 1492	1224	Explorer.EXE	31
PID 1224 wrote to memory of 1492	1224	Explorer.EXE	31
PID 1492 wrote to memory of 580	1492	NETSTAT.EXE	32
PID 1492 wrote to memory of 580	1492	NETSTAT.EXE	32
PID 1492 wrote to memory of 580	1492	NETSTAT.EXE	32
PID 1492 wrote to memory of 580	1492	NETSTAT.EXE	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\6605701.xls .exe
  "C:\Users\Admin\AppData\Local\Temp\6605701.xls .exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v smgjygh /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Local\smgjy.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1896
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v smgjygh /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Local\smgjy.exe"
      4⤵
      Adds Run key to start application
      PID:1904
- - C:\Users\Admin\AppData\Local\smgjy.exe
    "C:\Users\Admin\AppData\Local\smgjy.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1648
  - - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
      "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:928
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1492
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    PID:580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/928-20-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/1492-26-0x0000000003490000-0x00000000035D1000-memory.dmp

Download

memory/1492-24-0x0000000000A70000-0x0000000000A79000-memory.dmp

Download

memory/1648-11-0x0000000074080000-0x000000007476E000-memory.dmp

Download

memory/1648-12-0x0000000000E00000-0x0000000000E01000-memory.dmp

Download

memory/1648-17-0x0000000000980000-0x0000000000983000-memory.dmp

Download

memory/1680-0-0x0000000074080000-0x000000007476E000-memory.dmp

Download

memory/1680-1-0x0000000000D50000-0x0000000000D51000-memory.dmp

Download

memory/1680-3-0x0000000000AB0000-0x0000000000ACC000-memory.dmp

Download