MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3ab5efb42def342934ed461b4247037bb89eb0bb25fe12d33ac79f448aaf9eb7. 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: 14
| SHA256 hash: | 3ab5efb42def342934ed461b4247037bb89eb0bb25fe12d33ac79f448aaf9eb7 |
|---|---|
| SHA3-384 hash: | ee9cad802cdeb7adb107c8270034d9d87b73d0278251626f954ad5a608401a563db726bc8ef43598f5362f2160ecbb44 |
| SHA1 hash: | 099ba8fef4b8fcffdb4e363a90f6c6fe7537cb18 |
| MD5 hash: | 5558a602477164a94ec2eb9e624ab2ce |
| humanhash: | asparagus-wolfram-earth-colorado |
| File name: | qyZsOCiF3wB91CQ.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 603'648 bytes |
| First seen: | 2022-05-31 23:38:04 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger) |
| ssdeep | 12288:Vo6vAaH0FGYDnWjNiJ2TuU6fQq3020lZBj/rg:Vo6IYoNWjqFfQfdlZBj/ |
| TLSH | T1E7D4235236FC0353EDBE2BB88A72E8D07371B6677703D70E8B5068EA6A157104617B93 |
| TrID | 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.4% (.EXE) Win64 Executable (generic) (10523/12/4) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.4% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) OS/2 Executable (generic) (2029/13) |
| Reporter |  malwarelabnet |
| Tags: | exe FormBook xloader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
340
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
qyZsOCiF3wB91CQ.exe
Verdict:
Malicious activity
Analysis date:
2022-05-31 23:43:06 UTC
Tags:
formbook trojan stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
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
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Sample uses process hollowing technique
Self deletion via cmd or bat file
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:
Detection:
xloader
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-05-31 14:10:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 26 (73.08%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
xloader
Score:
10/10
Tags:
family:formbook family:xloader campaign:usps loader persistence rat spyware stealer suricata trojan
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
cff04f25330da07fa60a88720273f3806dbbaf107ec634adbd9a26fec5adda68
MD5 hash:
51bce2cd04f98ceb38fcb4d3be5b05c1
SHA1 hash:
21ce391350d5e925252049c0e04c95252910bfb6
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
f839ae8991ce2d458a56c1c6fadf003e7dfcc4beef7ba7956efff521baf5d1fd
MD5 hash:
c250044c731581a8e98c66b9a6708205
SHA1 hash:
f72df14a4bb6294b938a10690f82cffc3a625f4f
SH256 hash:
64ef74fd19d5b206ad9660f09e04e39a28c98a418bf2ad79ad11ece6c7704afe
MD5 hash:
3a9f48d04ce64c243b538b1eafcad5ab
SHA1 hash:
37432abd75c21afeb8d83dda8f764d0405d6217e
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
SH256 hash:
3ab5efb42def342934ed461b4247037bb89eb0bb25fe12d33ac79f448aaf9eb7
MD5 hash:
5558a602477164a94ec2eb9e624ab2ce
SHA1 hash:
099ba8fef4b8fcffdb4e363a90f6c6fe7537cb18
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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 |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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