marsstealer | c1a1bab48bfb9ad7e33ad7e0eba87c6b4d8fef14573b322e906ca55266947db8

General

Target

Mars Stealer Builder.h.7z
Size

9.3MB
MD5

17f119c13ca5c322d8f831edfba96ae4
SHA1

221ed0a212f3350556d148fba4fd48f671fb775e
SHA256

c1a1bab48bfb9ad7e33ad7e0eba87c6b4d8fef14573b322e906ca55266947db8
SHA512

7b8fe9e0bdf46bb55e121837619911938cb590b8293d760cbd130a5edc2508e707e05871bece7cc8a69b0b10e05afaf8b0dd32f693f4d6be23f1cf3ea958427c
SSDEEP

196608:VFi8/bA+1Rm3uBrv2pW+zIAiz0BVvvs7V/RY7rn+3W3qKrK2KRZnTFhl:VF1/kEdkFA86/RY7rn/KRZnTV

Score

10^/10

marsstealer default discovery stealer

Malware Config

Extracted

Family

marsstealer

Botnet

Default

C2

127.0.0.1/80

Signatures

Mars Stealer
An infostealer written in C++ based on other infostealers.
stealer marsstealer
Marsstealer family
marsstealer

Executes dropped EXE 5 IoCs

pid	Process
5012	MarsStealer8_cracked_by_LLCPPC.exe
4220	MarsStealer_Menu.exe
4900	MarsStealer8_cracked_by_LLCPPC.exe
4312	MarsStealer_Menu.exe
1052	Builded.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5096	5012	WerFault.exe	79

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	MarsStealer8_cracked_by_LLCPPC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MarsStealer_Menu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MarsStealer_Menu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Builded.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2464	7zFM.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	2464	7zFM.exe
Token: 35	2464	7zFM.exe
Token: SeSecurityPrivilege	2464	7zFM.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2464	7zFM.exe
2464	7zFM.exe

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Mars Stealer Builder.h.7z"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2464

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4608

C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer8_cracked_by_LLCPPC.exe
"C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer8_cracked_by_LLCPPC.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 1180
  2⤵
  - Program crash
  PID:5096

C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer_Menu.exe
"C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer_Menu.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5012 -ip 5012
1⤵
PID:5072

C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer8_cracked_by_LLCPPC.exe
"C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer8_cracked_by_LLCPPC.exe"
1⤵
- Executes dropped EXE
PID:4900

C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer_Menu.exe
"C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer_Menu.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4312

C:\Users\Admin\Desktop\Mars Stealer Builder.h\Builded.exe
"C:\Users\Admin\Desktop\Mars Stealer Builder.h\Builded.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1052

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

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Downloads

C:\Users\Admin\Desktop\Mars Stealer Builder.h\Builded.exe

Filesize
159KB

MD5
d5ee73a06e164e1519835ae15649f54c

SHA1
cce11d6eb1247761adf003c0c83d0f713e2cfbe6

SHA256
362894193dbed77d94d4153354492bc55741a448ee86014d4524aaa5d127a154

SHA512
1b4681ceec0e4c5c8d61f0515594122891ab222eb44f34a96f91c9e9a5ce915388ec29fd3a85ec659ca25fc8220f698982689e669b501ec8522a6c10e77b4c0c

Download Submit
C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer8_cracked_by_LLCPPC.exe

Filesize
159KB

MD5
caa1ddfbbe03a5a5daeb718605daacb0

SHA1
1dc62e3529aaafb20c3ca16697deb5cf6792d83f

SHA256
fcec85746f0f2a92b1268830d6d0b075eb9080707358b93ba5fbd917b1a0a8ea

SHA512
fb805afdf01603eb5af3ee8807fcd42a04e49d3a106e945fa9ab57a68a5068bdfc19a685213d3601be228dfbfae52315953e2400be9051a283f6df0923518ce7

Download Submit
C:\Users\Admin\Desktop\Mars Stealer Builder.h\MarsStealer_Menu.exe

Filesize
3KB

MD5
28b0510bc164a5f4950c087dd87c48de

SHA1
871ea12fd8e066bbca6c15da37f130a2b3d02957

SHA256
ba6bd4091ef2b54306221cf1de239ee49cd4e0fa169a35d04451888550a76b8d

SHA512
1126344fad52290155f037af52cf97461f5b49956be6b04354968b0f4748f7031a4e5659121b85386f9be1ffd74f1bc6cf221e595ead1c6292b6a277bf4bcbb0

Download Submit
memory/1052-23-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/4220-10-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4220-13-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4220-17-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4312-21-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/5012-7-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/5012-14-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

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