formbook | a8cadacdc044a5e4138f19f5726562160244e2ced4c78b44d8b5991d12bb8b2a

General

Target

9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe
Size

242KB
MD5

4a1c5227914a9c9282c5dcd651a0ccbe
SHA1

f4e41cd45bd8786b22dcae6c78c94ec9f2a810a0
SHA256

9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8
SHA512

9919d1ce07cefaab0b09b9266f01b4983cc2b7d0e8940f9eac0c6e27c471da0e619238fd15c79925471c9658930e59b118a693809b3c8121918eda39fa1af115
SSDEEP

6144:LkwMj35iWQXLGEp9Wge0p7+ubCCFd5VYaoVAbqpYEe:i34WQbhmge0Tl5VVoibqpYEe

Score

10^/10

formbook henz discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

henz

Decoy

IxWMb+jVsoinShuZJzk=

TPfKgQZ//oGnKr/J

EsK0WxD5kY65XOW1Td/5CxSUpCUytR7M

KebSmiCP9p8yUw==

HAt/ljkEuqMLHOLCi53Pv8MKX9qk

CY4ogZTwJc4vSw==

WWDIx5UYUDyepntE0YIAPca3/rI=

+Pkr01Lfb2rME7bL

S5nyK0p8jS2xdwQ=

W/oqvlO57LfkLcLHnQ==

zrrwtqkTLwxulm4l8FGopw==

AqucYext8bzFbOKthIm8E6gfVkUHxKY=

OfnjeDs78+RTcz4OHRl+

XKf1wwpZR5hLLjHgmUGOpQ==

JMyhSLoJPTCwn5o9zX2d8i1+

Wk54MBsDhWSVbnIRkQ==

7aaYR/tOhh9piTw5/KHSRwuK2iqgafw7pQ==

hH/EYxN+jC2xdwQ=

S0F4ORqDjS2xdwQ=

0o/UwXnuJ+sJp0cOHRl+

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-1-5-21-1488793075-819845221-1497111674-1000\Control Panel\International\Geo\Nation	anvnzaoum.exe

Executes dropped EXE 2 IoCs

pid	Process
3008	anvnzaoum.exe
2316	anvnzaoum.exe

Loads dropped DLL 4 IoCs

pid	Process
1480	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe
1480	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe
3008	anvnzaoum.exe
2444	colorcpl.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 2316	3008	anvnzaoum.exe	32
PID 2316 set thread context of 1248	2316	anvnzaoum.exe	21
PID 2444 set thread context of 1248	2444	colorcpl.exe	21

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	anvnzaoum.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2316	anvnzaoum.exe
2316	anvnzaoum.exe
2316	anvnzaoum.exe
2316	anvnzaoum.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
3008	anvnzaoum.exe
2316	anvnzaoum.exe
2316	anvnzaoum.exe
2316	anvnzaoum.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe
2444	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	anvnzaoum.exe
Token: SeDebugPrivilege	2444	colorcpl.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1248	Explorer.EXE
1248	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1248	Explorer.EXE
1248	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 3008	1480	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe	30
PID 1480 wrote to memory of 3008	1480	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe	30
PID 1480 wrote to memory of 3008	1480	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe	30
PID 1480 wrote to memory of 3008	1480	9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe	30
PID 3008 wrote to memory of 2316	3008	anvnzaoum.exe	32
PID 3008 wrote to memory of 2316	3008	anvnzaoum.exe	32
PID 3008 wrote to memory of 2316	3008	anvnzaoum.exe	32
PID 3008 wrote to memory of 2316	3008	anvnzaoum.exe	32
PID 3008 wrote to memory of 2316	3008	anvnzaoum.exe	32
PID 1248 wrote to memory of 2444	1248	Explorer.EXE	33
PID 1248 wrote to memory of 2444	1248	Explorer.EXE	33
PID 1248 wrote to memory of 2444	1248	Explorer.EXE	33
PID 1248 wrote to memory of 2444	1248	Explorer.EXE	33
PID 2444 wrote to memory of 1504	2444	colorcpl.exe	36
PID 2444 wrote to memory of 1504	2444	colorcpl.exe	36
PID 2444 wrote to memory of 1504	2444	colorcpl.exe	36
PID 2444 wrote to memory of 1504	2444	colorcpl.exe	36
PID 2444 wrote to memory of 1504	2444	colorcpl.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe
  "C:\Users\Admin\AppData\Local\Temp\9afee5e6dd1d97f008641020ac405b40512c4c8f3ac1a9ee278eb75d18556bd8.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Users\Admin\AppData\Local\Temp\anvnzaoum.exe
    "C:\Users\Admin\AppData\Local\Temp\anvnzaoum.exe" C:\Users\Admin\AppData\Local\Temp\xqyifn.vut
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - C:\Users\Admin\AppData\Local\Temp\anvnzaoum.exe
      "C:\Users\Admin\AppData\Local\Temp\anvnzaoum.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2316
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2444
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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

C:\Users\Admin\AppData\Local\Temp\afilu.zip

Filesize
444KB

MD5
d71848944418c67f6eb230682f9a969a

SHA1
11d37a0eccbaf9995c6b236ff1a99d174a2566bd

SHA256
efff0464180fcb34ec33e7835086ea58adc84bc3f0b08a7323ef1d58b258e59e

SHA512
7baef376fb5f87e43124f79f81fe45567b7926be277a05abbbfe74bdbbe8dc49c238999e432fb4c457dff23ca78915d2a899bdde9a2ee79b77c655c17ebe706d

Download Submit
C:\Users\Admin\AppData\Local\Temp\plijr.ysv

Filesize
185KB

MD5
4019e2924dc6b27b051aacbe79f7b0cd

SHA1
f345417cfe0a75300164d80370d30c97d005c556

SHA256
1fb56f4a15b9ee06b418800b6d8e50cbd65f037c5ba4b9f615b1bfb9b4ae84cb

SHA512
74873474a11501c4a7c2dcddb47d3746c71009de5c23d75769b387a6129679e95e6b18a25f605beefd0bdf3f66a4d5a4fdf95c15d27083854dd130c6981a68b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\xqyifn.vut

Filesize
5KB

MD5
9cc7bdc12442ccb434795bb316d484f8

SHA1
afb85de2f7b29c4cfc33cb9b1c2941195d062ba5

SHA256
e6cd4c005ace5bc1c887ac336f3bcb1e73613818615aa3b159dc63b2b9d59992

SHA512
d1daf2c68ac7d3394013615ba62069c4ea605e738e181824d80b060ef3568a7053de6ce7a8d15af6685899ef0c360ca843408f447ffb2037a589aa287cde6e02

Download Submit
\Users\Admin\AppData\Local\Temp\anvnzaoum.exe

Filesize
49KB

MD5
ad7b04bf79722139410e67334277fb3b

SHA1
df89d32ebf661b167032342db2a99d9d71279cf0

SHA256
75f11c547a4b59ce61b7b920bffabe67c0b0fc763b9e85e3db385c8c7207c2bb

SHA512
457e541e5d474441038af606b408af5a70f6bae6f87bbe4ab5d8b5ab753793c72c5ae742647d3c27b17070057319ec435fabe1218acbe49be315def29685610f

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
849KB

MD5
87f9e5a6318ac1ec5ee05aa94a919d7a

SHA1
7a9956e8de89603dba99772da29493d3fd0fe37d

SHA256
7705b87603e0d772e1753441001fcf1ac2643ee41bf14a8177de2c056628665c

SHA512
c45c03176142918e34f746711e83384572bd6a8ed0a005600aa4a18cf22eade06c76eda190b37db49ec1971c4649e086affd19eee108c5f405df27c0c8cb23d2

Download Submit
memory/1248-30-0x0000000004E70000-0x0000000004FD3000-memory.dmp

Filesize
1.4MB

Download
memory/1248-38-0x0000000004FE0000-0x0000000005075000-memory.dmp

Filesize
596KB

Download
memory/1248-36-0x0000000004FE0000-0x0000000005075000-memory.dmp

Filesize
596KB

Download
memory/1248-23-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1248-24-0x0000000004E70000-0x0000000004FD3000-memory.dmp

Filesize
1.4MB

Download
memory/1248-35-0x0000000004FE0000-0x0000000005075000-memory.dmp

Filesize
596KB

Download
memory/2316-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2444-29-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/2444-28-0x0000000000FA0000-0x0000000000FB8000-memory.dmp

Filesize
96KB

Download
memory/2444-27-0x0000000000FA0000-0x0000000000FB8000-memory.dmp

Filesize
96KB

Download
memory/2444-81-0x0000000061E00000-0x0000000061EC1000-memory.dmp

Filesize
772KB

Download
memory/3008-11-0x0000000000270000-0x0000000000272000-memory.dmp

Filesize
8KB

Download

Analysis

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