MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81
SHA3-384 hash: 6609bb665e2d3249eb824296506a3d5232d5a85d40a0caaf8cf821950d17775dccfdc57bf30800fee2de8be6156adabe
SHA1 hash: 70dfa677d8e1009ad21271b4db00297291cf35d4
MD5 hash: 2d401eff3fb7e3d78d85727e0235e5c3
humanhash: pluto-kansas-fifteen-pennsylvania
File name:12082021654654,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'372'160 bytes
First seen:2021-08-12 12:49:21 UTC
Last seen:2021-08-12 13:09:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:5oB0gKu/u5h9MCfKNeSxLL+OGaO2zYGQiOv7pXMsfvA4/Kzt16RDQ6H+Uy1Susr4:u07u/AMCfWNL+J5v7JMsGtKUZZS5R07
Threatray 7'807 similar samples on MalwareBazaar
TLSH T10355A13D6AB92637C066C275CAE19817F05098AF31D1AD7CA4C65F26C7D2A5331C32EE
dhash icon c4c4c4ccb4c4f630 (12 x Formbook, 5 x AgentTesla, 2 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
330
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
12082021654654,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-12 12:51:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/099ab015-0cb7-4396-994a-66eb090409c0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/178712/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.59996.27054.19903.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/06c3fae1-e200-41a8-ad92-7dd3871750e1
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/831760
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-08-12 12:50:06 UTC
AV detection:
16 of 27 (59.26%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vndzl5swwvhjhcgitvve35jhi5iq7jayxw2qvi527v5tglxr76aq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1dc173b24c0b503a394568e4a1fff7887dd739cc287e529f25b173dbfea4010b
Formbook
6137b2968c98b110deef11d69b037a5d541b39b930628d12881b6daa5bdb9bb4
Formbook
6d308c2e93c341ef11c0b14420e158fd650c637190a4daedf003ec091e703a85
Formbook
6db6324fe282260a224e77fff9bdad3240a63d48ac587f2a701785ea69c317a5
Formbook
a1e601d45399b724a7247ca82708d74182923dc096c62031ec80419e26f8e0f6
Formbook
aa9574014df2ac3fe4c9f8e32c45197542377ea99805665bcb0b4258df36adda
Formbook
+ 7'797 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:rqe8 loader rat suricata
Link:
https://tria.ge/reports/210812-8mqch8tsax/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.steveblexrud.com/rqe8/
Unpacked files
SH256 hash:
7e220a419867b596f29cb4a59ad041fe4efd8d05e95bc9efa7fdbdbe0f8de1d9
MD5 hash:
6a07c77eefde726358cd45dbd796359a
SHA1 hash:
400503dd1524917be53930a32bba506898f1bf23
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2feaaf7e-cfe5-4254-ab52-b3558c771a7e/
Parent samples :
6db6324fe282260a224e77fff9bdad3240a63d48ac587f2a701785ea69c317a5
6d308c2e93c341ef11c0b14420e158fd650c637190a4daedf003ec091e703a85
1dc173b24c0b503a394568e4a1fff7887dd739cc287e529f25b173dbfea4010b
a1e601d45399b724a7247ca82708d74182923dc096c62031ec80419e26f8e0f6
aa9574014df2ac3fe4c9f8e32c45197542377ea99805665bcb0b4258df36adda
5d9695ddab357ac379216b90f8c47a6fcd8c68c731dddeac77d5aa515dcbaa5a
ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81
5e5f76b60e8eb895e5af44be8ce40f88b77a44840851f761e6818da652ae5cac
SH256 hash:
627da978ac715506f9489266aa4f11af04b854102fc54f534a4f76eeddbcf953
MD5 hash:
7f02b1906fbf35f71b09b4525a52b290
SHA1 hash:
e182a75200c6a15b17cb90d5331540c443271aa9
Link:
https://www.unpac.me/results/2feaaf7e-cfe5-4254-ab52-b3558c771a7e/
SH256 hash:
33ac6b8012ce739e72022086b5d39b7fc030c20fa72988f76957685509d5c041
MD5 hash:
83f8ae95a7e6f016f6b00482588086e6
SHA1 hash:
70392939d6d60a913b51084ec1d98eaae8ca4868
Link:
https://www.unpac.me/results/2feaaf7e-cfe5-4254-ab52-b3558c771a7e/
SH256 hash:
ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81
MD5 hash:
2d401eff3fb7e3d78d85727e0235e5c3
SHA1 hash:
70dfa677d8e1009ad21271b4db00297291cf35d4
Link:
https://www.unpac.me/results/2feaaf7e-cfe5-4254-ab52-b3558c771a7e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe ab4795f656b54e9388c89d6a4df52747510fa418bdb50aa3bafd7b332ef1ff81

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/178712/

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