formbook | 91c69e984e53cc30d77e21fcb1a44044fff62368ee2740f04b3b26bfb82f2967

Analysis

max time kernel
153s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2022, 10:07

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General

Target
PURCHASE ORDER.exe
Size 780KB
Sample221002-l5mpmsaec9
SHA256 91c69e984e53cc30d77e21fcb1a44044fff62368ee2740f04b3b26bfb82f2967
MD5 f98bec40f03d25ad5b32a76d9c2ec644
SHA1 8d92bbb1f1d103edd65ae7f0c607bb255b2d025e
SHA512 251e97202be44ff44342cc95d7df56f23d7ccad49495340e2acc1859b54003ef1cb98621b305d7c99a4c4dcf43c8e67af0c32aee024f461eebd2458ea41ae9ac
SSDEEP 12288:oAr2iNEmbRuWQbYMoqIydCZUjisTh6GD5BWjULBmb:N1ziDIA0Uhr5kju
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook uymo rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

uymo

Decoy

A4J+j1lFUiMbPgQD0uzpdg==
F3lajp/JwxgpzPZ3bf9zrK0EzWDU/JY=
bOCwjfx/jOF4Las6GFv7+tQ=
9BDZHgUVSa1ypSWjNcPR
S9u+wp+ai+yEW4OWIQ==
wXxiP8BRWDG2JiTw5XA=
VeumNjNg3QeL/qtw
KYxbMI9RU7eqPpEYg1v7+tQ=
zwfU2Vv4NxXzDLy1IWFrDo3iqOoV1KB3
0XQ3wM3oGntH+iTw5XA=
nx7p2XIfYkHv9+Uu+VKx3l41j3mS454=
+BIOmtNni5xbAo5VEZFYQFAw
tkQa0SXOEjV/0yTw5XA=
YOLHv42Us4eMrHCod80dYluXJzNn
HZdsbBNsdAvOq+cr4CaIfg==
YlQ/0dwFQYtd+DXIxzKUlO8kBc9C9A==
mCL+zS69yZ9DyvVMC4399tE/Xk0V1KB3
+tXLkwCl2LyCqaNnalv7+tQ=
yPzM2bjLKPyixsjWSoWe9NI=
KQPQVL5puBHigv/RmyAU0ExD4GDU/JY=
JvKyLYsRMI2eQH4OQrebYQ==
HvrKKC9HQdKSW4OWIQ==
p9Sx6ie6rYwuxDm5sQbZ
UaaHyOMC+VT0Q3/1g82zLvwXcl1+
66h/Ay3OGvu/EiTw5XA=
PXw/UO+Fm7Bx5SWEL6cRC5YvSwRwCsN/
Q0EktsDXF4M+v+O5jgzO
x9Kw+8TDzSQYyA9uGFpUp06Ywg==
ZLBtbv+o8Pfz3kbXRID+Bs2RKmr1Y04b5A==
Osy8wKGdt5mXpm52/Flbp06Ywg==
a/i5N40UXcn0GNTLR1rmrvkALU0=
KR/wD+0NEqt/W4OWIQ==
2IRS4je8+cSuTIMUEFv7+tQ=
G3pJUeaZF+49W4OWIQ==
cx7olwCt/6K97JpoDHow8EvAl+dw
K6Jc4l8WqbXE
mYFozKXUK7zUgdNTV93qhvE4
BW9RWSo1MY8tRjFxN5Htp06Ywg==
hc+pu5Suqw8QnZmuhctYQFAw
sFAJl/t7tBhCaSe5sQbZ
MG1EEShq9h/ae+c=
1ibC9F5Npwk=
68qwb3sWqbXE
/PjVVbxRrjMwW4OWIQ==
Rsy3gq6/sg==
i5tqtbri2SfQBQ1KElv7+tQ=
eKiFlF5eqbaL/qtw
9q6BF270EWZsBy91cLQWC9Y=
ExLkJvn7EKVudy65sQbZ
TgDl2cXOEr2kLiTw5XA=
c93K2KWlHs9W8STw5XA=
BY6GjF6ClSTg7OO5jgzO
TX5lkGNnpv/R9A==
hOKqhe2K0sB4XAgC0uzpdg==
njAAwivU9M1kwnwLfFv7+tQ=
tuCt6svLyxcDrfhHQrebYQ==
YgFhX0yTVL5EuO8=
BE4kVDdOjvOjDi56Klv7+tQ=
Lr6Qa81hdlH6qzm5sQbZ
RJ92hwuPn3oQqi65sQbZ
C1EcGPQnM5EvQzBwKVv7+tQ=
hO7e83wwjpdAyQF46fGqKv0Xcl1+
4cuR28DW6bUyJdWnW+XtlpmciXEj7Q==
skDwJ+vzKjvc/g==
cdrhdl.com

Signatures

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

Checks computer location settings 2 TTPs 2 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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	PURCHASE ORDER.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	PURCHASE ORDER.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3884 set thread context of 684	3884	PURCHASE ORDER.exe	98
PID 684 set thread context of 3020	684	PURCHASE ORDER.exe	56
PID 1104 set thread context of 3020	1104	WWAHost.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3088	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	WWAHost.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
3884	PURCHASE ORDER.exe
4280	powershell.exe
1580	powershell.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
1104	WWAHost.exe
1104	WWAHost.exe
1580	powershell.exe
4280	powershell.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
684	PURCHASE ORDER.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe
1104	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3884	PURCHASE ORDER.exe
Token: SeDebugPrivilege	4280	powershell.exe
Token: SeDebugPrivilege	1580	powershell.exe
Token: SeDebugPrivilege	684	PURCHASE ORDER.exe
Token: SeDebugPrivilege	1104	WWAHost.exe
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3884 wrote to memory of 1580	3884	PURCHASE ORDER.exe	92
PID 3884 wrote to memory of 1580	3884	PURCHASE ORDER.exe	92
PID 3884 wrote to memory of 1580	3884	PURCHASE ORDER.exe	92
PID 3884 wrote to memory of 4280	3884	PURCHASE ORDER.exe	94
PID 3884 wrote to memory of 4280	3884	PURCHASE ORDER.exe	94
PID 3884 wrote to memory of 4280	3884	PURCHASE ORDER.exe	94
PID 3884 wrote to memory of 3088	3884	PURCHASE ORDER.exe	96
PID 3884 wrote to memory of 3088	3884	PURCHASE ORDER.exe	96
PID 3884 wrote to memory of 3088	3884	PURCHASE ORDER.exe	96
PID 3884 wrote to memory of 684	3884	PURCHASE ORDER.exe	98
PID 3884 wrote to memory of 684	3884	PURCHASE ORDER.exe	98
PID 3884 wrote to memory of 684	3884	PURCHASE ORDER.exe	98
PID 3884 wrote to memory of 684	3884	PURCHASE ORDER.exe	98
PID 3884 wrote to memory of 684	3884	PURCHASE ORDER.exe	98
PID 3884 wrote to memory of 684	3884	PURCHASE ORDER.exe	98
PID 3020 wrote to memory of 1104	3020	Explorer.EXE	99
PID 3020 wrote to memory of 1104	3020	Explorer.EXE	99
PID 3020 wrote to memory of 1104	3020	Explorer.EXE	99
PID 1104 wrote to memory of 3452	1104	WWAHost.exe	100
PID 1104 wrote to memory of 3452	1104	WWAHost.exe	100
PID 1104 wrote to memory of 3452	1104	WWAHost.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
  "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3884
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1580
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LCxTzOU.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4280
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LCxTzOU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2064.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3088
- - C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:684
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.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:1104
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3452

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp2064.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2064.tmp
Size 1KB
SHA256 9145a634aedb946930b6c66fa7afc48fa1d5209bc574640849b516e96edf4a4c
MD5 7850003b610121b7364018e86d5232d6
SHA1 e88999dfbb857d32a9f99c294dc86f027513207e
SHA512 6854d339a13a0deb4397224843bfe77977bb157da9c64202bd4e37be8390cd566747e21c22f21f5ef2f8bc0fa2bf37c52eb9438bc5afe7a0b78bfcd0b98e8e10
MD5 SHA1 SHA512

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memory/684-156-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/684-149-0x0000000000401000-0x000000000042F000-memory.dmp

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memory/684-146-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/684-148-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/684-153-0x00000000007F0000-0x0000000000800000-memory.dmp

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memory/684-157-0x0000000000401000-0x000000000042F000-memory.dmp

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memory/684-152-0x00000000011F0000-0x000000000153A000-memory.dmp

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memory/1104-158-0x0000000000780000-0x000000000085C000-memory.dmp

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memory/1104-159-0x0000000001950000-0x0000000001C9A000-memory.dmp

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memory/1104-160-0x0000000000730000-0x000000000075D000-memory.dmp

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memory/1104-163-0x0000000001680000-0x000000000170F000-memory.dmp

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memory/1104-165-0x0000000000730000-0x000000000075D000-memory.dmp

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memory/1580-144-0x0000000005170000-0x0000000005192000-memory.dmp

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memory/1580-161-0x0000000006130000-0x000000000614E000-memory.dmp

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memory/1580-176-0x0000000007810000-0x000000000782A000-memory.dmp

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memory/1580-172-0x0000000007540000-0x000000000754A000-memory.dmp

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memory/1580-142-0x00000000053A0000-0x00000000059C8000-memory.dmp

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memory/1580-171-0x00000000074D0000-0x00000000074EA000-memory.dmp

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memory/1580-169-0x0000000006780000-0x000000000679E000-memory.dmp

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memory/1580-167-0x0000000072150000-0x000000007219C000-memory.dmp

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memory/1580-166-0x00000000067A0000-0x00000000067D2000-memory.dmp

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memory/1580-139-0x0000000002810000-0x0000000002846000-memory.dmp

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memory/3020-164-0x0000000007C80000-0x0000000007D7E000-memory.dmp

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memory/3020-162-0x0000000007B90000-0x0000000007C71000-memory.dmp

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memory/3020-173-0x0000000007C80000-0x0000000007D7E000-memory.dmp

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memory/3020-154-0x0000000007B90000-0x0000000007C71000-memory.dmp

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memory/3884-135-0x0000000005600000-0x000000000560A000-memory.dmp

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memory/3884-137-0x0000000009400000-0x0000000009466000-memory.dmp

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memory/3884-134-0x0000000005680000-0x0000000005712000-memory.dmp

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memory/3884-133-0x0000000005B90000-0x0000000006134000-memory.dmp

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memory/3884-132-0x0000000000B80000-0x0000000000C4A000-memory.dmp

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memory/3884-136-0x0000000009160000-0x00000000091FC000-memory.dmp

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memory/4280-168-0x0000000072150000-0x000000007219C000-memory.dmp

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memory/4280-170-0x0000000007690000-0x0000000007D0A000-memory.dmp

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memory/4280-174-0x00000000072A0000-0x0000000007336000-memory.dmp

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memory/4280-175-0x0000000007090000-0x000000000709E000-memory.dmp

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memory/4280-150-0x00000000054B0000-0x0000000005516000-memory.dmp

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memory/4280-177-0x0000000007360000-0x0000000007368000-memory.dmp

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