MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03
SHA3-384 hash: b67dde372c69efc876e113300df56050b1157133ec5ebde79c1e5fea1883eb695a34c0b349342eac01a5a021076c2c66
SHA1 hash: cbff1c30df6063e3f8cbe3d3fa5ee4d8a1eb2df7
MD5 hash: b4338e48c2986e8a1a4e30dbce9684ee
humanhash: east-bacon-sad-stream
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:556'544 bytes
First seen:2020-10-16 12:51:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:/r0Dx9dBuk7Rxpq8BSvMPIeQFIna2xHdFocqX48RKTvgJvsdLXCMrOd5r4Fs8MbD:/gD/3Jrpq+AKa2nFocglmY8uBvg0qs
Threatray 2'705 similar samples on MalwareBazaar
TLSH AEC4B0B1799298BEC96B0371446AC4C1FAB616DB3FA08B0E719F631C0E21717A75364F
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72015/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/493625
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Svchost Process
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299268 Sample: file.exe Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected FormBook 2->36 38 5 other signatures 2->38 10 file.exe 7 2->10         started        process3 file4 26 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->26 dropped 28 C:\Users\user\AppData\Local\Temp\...\Fdf.dll, PE32 10->28 dropped 30 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->30 dropped 46 Tries to detect virtualization through RDTSC time measurements 10->46 48 Injects a PE file into a foreign processes 10->48 14 file.exe 10->14         started        signatures5 process6 signatures7 50 Modifies the context of a thread in another process (thread injection) 14->50 52 Maps a DLL or memory area into another process 14->52 54 Sample uses process hollowing technique 14->54 56 Queues an APC in another process (thread injection) 14->56 17 explorer.exe 14->17 injected process8 process9 19 svchost.exe 17->19         started        signatures10 40 Modifies the context of a thread in another process (thread injection) 19->40 42 Maps a DLL or memory area into another process 19->42 44 Tries to detect virtualization through RDTSC time measurements 19->44 22 cmd.exe 1 19->22         started        process11 process12 24 conhost.exe 22->24         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03/
Threat name:
ByteCode-MSIL.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-10-15 15:17:38 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w74vi35j7oji3bllngtqc5gwsoueyza22gj6rdsiyb6nxetvdybq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0982a348bad7e99222ac6ec6c6dc2c113eb8adff8785bd1f371c5bc90b0025b3
Formbook
0f97d2c99964370b019145742e1d9322e9248fea3e149f00c10ca99807bcafa4
Formbook
205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2
Formbook
2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390
Formbook
37fa0d1153831bdf8c08560d18a83afc2ccede848883819536eb81497c63229f
Formbook
4e712f5df51bc5970b962b170cfde7a6cd20622ac67164a6f2101655a8a7d7f3
Formbook
82ec33dd4f26eab172d8a0fc536751d12153a3f7175351da311a7059217c670e
Formbook
87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
b3289e282e7c031fde98778bac0057bad5d933c85da0b43d95f177c6333fc3c2
Formbook
+ 2'695 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201016-k2przfqtdn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mxmsportsgear.com/dfr/
Unpacked files
SH256 hash:
b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03
MD5 hash:
b4338e48c2986e8a1a4e30dbce9684ee
SHA1 hash:
cbff1c30df6063e3f8cbe3d3fa5ee4d8a1eb2df7
Link:
https://www.unpac.me/results/0d0b993e-dbc4-4ebd-966b-e598ad19aa53/
SH256 hash:
30140c3bf5874d7d184b15513016f9de1524ae95a5efe9a1cb15bad6d6936d64
MD5 hash:
03847d82611bc6461cbb99ca768828f1
SHA1 hash:
39859a3fd3326520dfd1ed10456bb227933a8871
Link:
https://www.unpac.me/results/0d0b993e-dbc4-4ebd-966b-e598ad19aa53/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/0d0b993e-dbc4-4ebd-966b-e598ad19aa53/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
cc68e3eb8bccc4a249ec5b6f7d83cb2230442040a398aa362c30bfa520987bc5
MD5 hash:
0c74f2c28837f15bd9481236e4fff068
SHA1 hash:
d6aaa270e7cde6512b8861d725556433b7da78b9
Link:
https://www.unpac.me/results/0d0b993e-dbc4-4ebd-966b-e598ad19aa53/
SH256 hash:
5471221d05c4363d2dcb8eea16133e78c54b0ae1d9169cc7d8d75df8a71658b1
MD5 hash:
884036c323f9ac728697f9b8449f17cd
SHA1 hash:
65eaa89e5651c5d1301f940898ebb5d184fcec9a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0d0b993e-dbc4-4ebd-966b-e598ad19aa53/
Parent samples :
205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2
37fa0d1153831bdf8c08560d18a83afc2ccede848883819536eb81497c63229f
0c3afc73b1560d5d817104a616325e9f7a825e6b0158dfa0469b423c8bfbdf64
b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03
7843242690547cf0b4ebea118783c903b99c3a211f1775db3cf24b09fbe2454a
7538931bad1762c44d0d66ea730a3ca6c5acb18d326f3a2f5bffa1f81864354e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72015/

Comments