formbook | 281c8fd39c08dffdc05bab9f5ece8952452afbc7928451fb6276d3c8013d4db6

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
14/10/2022, 17:19

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General

Target
invoice.exe
Size 779KB
Sample221014-vvtvmsdhem
SHA256 281c8fd39c08dffdc05bab9f5ece8952452afbc7928451fb6276d3c8013d4db6
MD5 66af734938875280f24a7ff42308390a
SHA1 4b3e5645863114b86c3f5bffa24d82b7e28c9e61
SHA512 f3bf1e617077b038e2eeed15c1b17667eb008deb2ee744c98f640ccbecd3d1a889266f93a962846832a7f1a8f6102bc36861841a1d44dd7b32a9d8f41eb8b5a9
SSDEEP 12288:ugXZdWDvqr59868902+Emjv/xnxDyzBYtOsjxzKzc5npbvOGwJAM25eqxbBwOT+3:hcDvE598lS2+EUOzytldKzchxrew0Bl
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook dj6o rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

dj6o

Decoy

eHTcR+KSbIHKrEJYcaqomJrw
d4CQy4B84xPiXuPwHUtF
8eIkbHEq+BPxberwHUtF
m0+kGJZPG1H1jgngcA==
AMbXEsJxX4/J80MD
cxBd6axquGelQQc=
J9URjF0q/TbJ80MD
HxxYujs6bp7dberwHUtF
VhwjWCuW1Xau
Hs4ZrXYwBycFVX7hJpekXd1oRg==
XyAqZOXgWECQBQ==
H+HaBrNXMlQ5j+GkDTwf7dEalRSG8g==
Kvj6PwPvL2f1jgngcA==
q3F0mzHxjbyi
G/sniBrf1waZ08/yTxyN8qLm
9uD0ZBYgb5ZiuP3wHUtF
Ndkqiyj14RhyZziD6WwV4O8=
PuY9wEs6hMAOTUs2mUCtdjzUeRyb+A==
PwsHXAKokKjJ80MD
xa4YnG9AI0WKthDfFO0=
MQ8MH62d8yYM76ur+PSq1rv4
3bzBJcCw7xdiv6jgTRiI8E6SoqA=
gllski02plO4hezwHUtF
fFupcJ7vWECQBQ==
t6rT74IzHwBjQg/PFfJ+XkwUqbyJ5R0=
56Sm6qNmn1DQ0GlhvXvBC8S/VqKP
WUlz+MBsMUUotVBYcaqomJrw
byiB84SNALIdtosIbQ==
Tl6H0INUQnheJvdAtTwA8vY=
AqzubjoPnUI=
pjxDfDsybJ4Evov1Zw==
MAQDK8y6Gb0I8vGtGwxpvjK2JAGH
UO5BqmVqz165KziylGwV4O8=
47b4ZydnxKzyMwE=
Bf7i1stH8J4Hvov1Zw==
tK7qfS7XseFCG6OY3GwV4O8=
p7cCavm6qOBKr71GbhlsLg==
0bXQHb94wGTx++0ubw==
t46Y0lNYob2TEONj2nnu4vA=
gkCQBL5zSXzPIzOm/2M+jjzEWfA+cYlv5g==
Kzh59Yh31ILszGVWratKal6xHAOH
BLr9ZQYBWbxKmbIgLtHALA==
VlyjEKNUSG6hcUoFandY
H/INXiD4y/bdLYKCq/LdOw==
f01NhTwlcqR+CogrfHrHtan3
V6baC439Psa1
t6uu52heoTqUcvDwHUtF
bXDKLuDkj/MmnzHyQ1Qp7b2/VqKP
kFa9Hr2GVXzP1qfEwpH66PI=
hFlcmTAgXE26HA==
85LuilH7N+c6mufwHUtF
9Mjd/JJR6hbo8fQjZg==
SkA7YPrxX12JbRo=
2fZDwaBN5E+tBw==
VlSNGsrK/95sfUVy24flta+6Ioi43B32
CLjlLea4n8MLvov1Zw==
S02ihrc5x/C6
gGV6xWcvWECQBQ==
EcQcUtKDg91tUQ4=
YQpcvUdGvKPaHg==
YQhIzXwraFg/LwQ=
pJbkcPbqSzli0jIB
x3zE9noxWECQBQ==
b1pvqkHtG0wdjQv4Vz+4h06SoqA=
hotelarta.cloud

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
1768	raserver.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1324 set thread context of 1020	1324	invoice.exe	27
PID 1020 set thread context of 1400	1020	RegSvcs.exe	6
PID 1768 set thread context of 1400	1768	raserver.exe	6

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1020	RegSvcs.exe
1020	RegSvcs.exe
1020	RegSvcs.exe
1020	RegSvcs.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1400	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1020	RegSvcs.exe
1020	RegSvcs.exe
1020	RegSvcs.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe
1768	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	invoice.exe
Token: SeDebugPrivilege	1020	RegSvcs.exe
Token: SeDebugPrivilege	1768	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1400	Explorer.EXE
1400	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1400	Explorer.EXE
1400	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1324	invoice.exe
1324	invoice.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1324 wrote to memory of 1020	1324	invoice.exe	27
PID 1400 wrote to memory of 1768	1400	Explorer.EXE	28
PID 1400 wrote to memory of 1768	1400	Explorer.EXE	28
PID 1400 wrote to memory of 1768	1400	Explorer.EXE	28
PID 1400 wrote to memory of 1768	1400	Explorer.EXE	28
PID 1768 wrote to memory of 1840	1768	raserver.exe	30
PID 1768 wrote to memory of 1840	1768	raserver.exe	30
PID 1768 wrote to memory of 1840	1768	raserver.exe	30
PID 1768 wrote to memory of 1840	1768	raserver.exe	30
PID 1768 wrote to memory of 1840	1768	raserver.exe	30

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:1400
- C:\Users\Admin\AppData\Local\Temp\invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1324
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1020
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - 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:1768
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

sqlite3.dll

Path \Users\Admin\AppData\Local\Temp\sqlite3.dll
Size 888KB
SHA256 6710d91d77e1937dd5b46d96c0852042985dc78c4c51ce12d3e07a4cdb12c202
MD5 9c73b282279e74e40435132e61fda001
SHA1 63c7248e91b68fbde4641e3c5e2dc3e9d38671fa
SHA512 02f9a01a3a5f74ef994ebb9e5f24c6870e2d48c8b99c429a63e74dad73fb581f0b52b2a86d651cafa414675b70a0e85b2e08c843d07e080fe69ee835e3c91108
SSDEEP 24576:Gk99/oB1gHyv1DmZIVHas0Sy4bfR/oVAZzv/Zg:G2KDBmZS6v54zR/2AA
MD5 SHA1 SHA512 SSDEEP

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memory/1020-69-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1020-71-0x00000000001C0000-0x00000000001D0000-memory.dmp

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memory/1020-68-0x0000000000A40000-0x0000000000D43000-memory.dmp

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memory/1020-70-0x0000000000401000-0x000000000042F000-memory.dmp

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memory/1020-67-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1020-60-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1020-61-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1020-63-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1324-66-0x00000000003F7000-0x0000000000408000-memory.dmp

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memory/1324-59-0x00000000004C0000-0x00000000004F4000-memory.dmp

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memory/1324-56-0x00000000003F7000-0x0000000000408000-memory.dmp

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memory/1324-58-0x0000000005D80000-0x0000000005E0C000-memory.dmp

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memory/1324-57-0x0000000000470000-0x0000000000490000-memory.dmp

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memory/1324-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

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memory/1324-54-0x00000000002E0000-0x00000000003AA000-memory.dmp

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memory/1400-80-0x000007FEF6A90000-0x000007FEF6BD3000-memory.dmp

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memory/1400-72-0x0000000006B00000-0x0000000006C61000-memory.dmp

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memory/1400-84-0x0000000006D40000-0x0000000006E1A000-memory.dmp

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memory/1400-81-0x000007FED4350000-0x000007FED435A000-memory.dmp

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memory/1400-79-0x0000000006D40000-0x0000000006E1A000-memory.dmp

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memory/1768-82-0x0000000000080000-0x00000000000AD000-memory.dmp

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memory/1768-78-0x00000000008B0000-0x000000000093F000-memory.dmp

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memory/1768-77-0x0000000001EE0000-0x00000000021E3000-memory.dmp

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memory/1768-76-0x0000000000080000-0x00000000000AD000-memory.dmp

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memory/1768-75-0x0000000000AC0000-0x0000000000ADC000-memory.dmp

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