lumma | e3fc82016d019a3879b3ebace9b949bc38212447e3d1775e618a57ef982b41a1

General

Target

2b8bcef4db3812c27d540f4cc146879a.exe
Size

44KB
MD5

2b8bcef4db3812c27d540f4cc146879a
SHA1

fe5dba4ff84a9f4b8eb409d15c69d74bd48fe8d7
SHA256

e3fc82016d019a3879b3ebace9b949bc38212447e3d1775e618a57ef982b41a1
SHA512

1688d760b33bd4588b2f3aee94db8a32ff2fe5c390ddc1e868f101bb776e2c5055e67f6564dc66ae96d134768f31159f839e58df1669b9e2c3f9e93b712bd6cb
SSDEEP

768:Srn01NSVwafevGHkiV++I1gqDnJuuAuznQVLNvxu0BvkwIt6BcN4fehnXn:Sr01N7aeGEk+11Tu9AnQVLNppvk9RN4s

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

C2

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

Signatures

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma
Downloads MZ/PE file

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4496	3304	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 4 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	2b8bcef4db3812c27d540f4cc146879a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2612	2b8bcef4db3812c27d540f4cc146879a.exe
2612	2b8bcef4db3812c27d540f4cc146879a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2612	2b8bcef4db3812c27d540f4cc146879a.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 3096	2612	2b8bcef4db3812c27d540f4cc146879a.exe	84
PID 2612 wrote to memory of 3096	2612	2b8bcef4db3812c27d540f4cc146879a.exe	84
PID 2612 wrote to memory of 3096	2612	2b8bcef4db3812c27d540f4cc146879a.exe	84
PID 3096 wrote to memory of 3268	3096	csc.exe	86
PID 3096 wrote to memory of 3268	3096	csc.exe	86
PID 3096 wrote to memory of 3268	3096	csc.exe	86
PID 2612 wrote to memory of 3840	2612	2b8bcef4db3812c27d540f4cc146879a.exe	87
PID 2612 wrote to memory of 3840	2612	2b8bcef4db3812c27d540f4cc146879a.exe	87
PID 2612 wrote to memory of 3840	2612	2b8bcef4db3812c27d540f4cc146879a.exe	87
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88
PID 2612 wrote to memory of 3304	2612	2b8bcef4db3812c27d540f4cc146879a.exe	88

C:\Users\Admin\AppData\Local\Temp\2b8bcef4db3812c27d540f4cc146879a.exe
"C:\Users\Admin\AppData\Local\Temp\2b8bcef4db3812c27d540f4cc146879a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\22us3lhk\22us3lhk.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3096
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESE927.tmp" "c:\Users\Admin\AppData\Local\Temp\22us3lhk\CSCF1263CE17F4F4AC9B735851CD9DD63A0.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3268
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe"
  2⤵
  PID:3840
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3304
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 560
    3⤵
    - Program crash
    PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3304 -ip 3304
1⤵
PID:4688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\22us3lhk\22us3lhk.dll

Filesize
8KB

MD5
74bfcfc20ae97249d67f53dea8739893

SHA1
5bd3f4191b270927d7da9c6b25b1c8b947d97fcc

SHA256
604cf3ad1769528760efd1e179848d2fdc28dc179c17f130546e954d7c146469

SHA512
c5686feb0646f924ebde884ea2586f84230275352910fad0b1d609dc0c6f11f933399f32d2107c95856ab7a3a37d450c4ab0399e8eb4297310b88d2583de8887

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESE927.tmp

Filesize
1KB

MD5
05d571416defe99c2fcb31570f12598f

SHA1
d5f6ac7687c503d4795dc11912f4cfebef182804

SHA256
cdffc1ae455cee87421662c2ab46c7b35ecca860458dccc8ef2b301137ae8087

SHA512
9ebcfb6108a6ada46c8519c2ced95f736e09a850062c648393160686006799e5dade851dda651e8769f568d1bcf47341e456db87dcb9fcb978ca662e91254916

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\22us3lhk\22us3lhk.0.cs

Filesize
10KB

MD5
b022c6fe4494666c8337a975d175c726

SHA1
8197d4a993e7547d19d7b067b4d28ebe48329793

SHA256
d02016a307b3e8da1a80c29551d44c17358910816e992bc1b53da006d62dd56a

SHA512
df670235e87b1ee957086be88731b458c28629e65e052276dd543be273030986a7e5c67fa83587f68ec06fa0f33b0c3f1f041c2d06073709b340f96c3884f2b9

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\22us3lhk\22us3lhk.cmdline

Filesize
204B

MD5
a0c9ee3381b1e9116aea8b2d9dcf97cb

SHA1
dc84d0806aced3044d228c7b799db5262e2e5684

SHA256
311ff59c3d4504ac4397044f7cb730edec6a1c5da59dc507346607a808a401da

SHA512
3891007ed1cdffde711faffa42eb5afe1a61306cf83f624f8dc9f68c9ba611cbba792930c24723ef3e0d56224d875c8409148d450134eefbc4bff458dbf1755c

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\22us3lhk\CSCF1263CE17F4F4AC9B735851CD9DD63A0.TMP

Filesize
652B

MD5
94a2301e2a6804383ff8682a3ee4607c

SHA1
13919ab45ea91df29c012353c5d8d30c0cd6155c

SHA256
4e210c14115155385f2aaee7a3de42b53d246000cd561f2a197d54e626ee6380

SHA512
9cf813724f828609fa5babc2273f947a61b3e480a89d03c2abd886a6e7c8e279d91032840ec47cbc36227716dc6b2b9d2cb77731c54bd73f29e5db9b4a412cd5

Download Submit
memory/2612-3-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/2612-4-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/2612-0-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/2612-2-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/2612-1-0x0000000000730000-0x0000000000742000-memory.dmp

Filesize
72KB

Download
memory/2612-17-0x0000000005A70000-0x0000000005A78000-memory.dmp

Filesize
32KB

Download
memory/2612-25-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/3304-19-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3304-22-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3304-24-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing