97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c

General

Target

97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Size

113KB
MD5

ccaacce738da55bef3923652a00e0513
SHA1

ab13b8eec27d0d5112575b9308e247e2f80d6efa
SHA256

97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c
SHA512

a5b4fe0a5f25dcb4eec42c59b9f1e8f9043cef4603b70489e88b362700ae2e3e5bc6e2068469bdc2e1b92f019acf58338327348d0b2997e656e13b2517e6bbc9
SSDEEP

3072:hdypzwl22/lU8QKTvOucjZukl8R5wNdcG48ES:hdypklzi8QoOz4XIh4I

Score

10^/10

adware evasion persistence stealer upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer"	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe

Executes dropped EXE 1 IoCs

pid	Process
904	msn.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0009000000012696-55.dat	upx
behavioral1/files/0x0009000000012696-56.dat	upx
behavioral1/files/0x0009000000012696-58.dat	upx
behavioral1/memory/904-64-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral1/files/0x0009000000012696-65.dat	upx
behavioral1/memory/752-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx

Loads dropped DLL 3 IoCs

pid	Process
940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
752	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	msn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSN = "\"C:\\Windows\\SysWOW64\\msn.exe\" /INITSERVICE"	msn.exe

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\browser helper obJects\{73364D99-1240-4dff-B11A-67E448373048}	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ipv6monl.dll	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
File created	C:\Windows\SysWOW64\msn.exe	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
File opened for modification	C:\Windows\SysWOW64\ipv6monl.dll	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
File opened for modification	C:\Windows\SysWOW64\msn.exe	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
File created	C:\Windows\SysWOW64\hook.dll	msn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 904 set thread context of 752	904	msn.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{73364D99-1240-4dff-B11A-67E448373048}	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{73364D99-1240-4dff-B11A-67E448373048}	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{73364D99-1240-4dff-B11A-67E448373048}\InprocServer32	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{73364D99-1240-4dff-B11A-67E448373048}\InprocServer32\ = "C:\\Windows\\SysWow64\\ipv6monl.dll"	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{73364D99-1240-4dff-B11A-67E448373048}\InprocServer32\ThreadingModel = "apartment"	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{73364D99-1240-4dff-B11A-67E448373048}\InprocServer32\Enable Browser Extensions = "yes"	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
904	msn.exe
752	svchost.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 904	940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe	28
PID 940 wrote to memory of 904	940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe	28
PID 940 wrote to memory of 904	940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe	28
PID 940 wrote to memory of 904	940	97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe	28
PID 904 wrote to memory of 752	904	msn.exe	29
PID 904 wrote to memory of 752	904	msn.exe	29
PID 904 wrote to memory of 752	904	msn.exe	29
PID 904 wrote to memory of 752	904	msn.exe	29
PID 904 wrote to memory of 752	904	msn.exe	29

C:\Users\Admin\AppData\Local\Temp\97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe
"C:\Users\Admin\AppData\Local\Temp\97a57b6781186991194ff52dd6174320dbd3bc824758a5291773b3cdb7576b5c.exe"
1⤵
- Modifies firewall policy service
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\msn.exe
  "C:\Windows\system32\msn.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe "C:\Windows\SysWOW64\msn.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious use of SetWindowsHookEx
    PID:752

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\hook.dll

Filesize
3KB

MD5
09622aa51a9ebb43e7f08fb526e17271

SHA1
b679fbe74699be374fe8999395dbe92328f6971b

SHA256
2a0dc780e9860a640542335630edd022a3d630c6428baa53f052581f272e8850

SHA512
cca2f390dc702c03651c86016673ae25652d23bb5fbbd844593d9b30cc681a9dd254a550d0f53e5c340118a460f78490040a9cca13643fddc53458fae09ec170

Download Submit
C:\Windows\SysWOW64\msn.exe

Filesize
14KB

MD5
ee398fdc42e4688ca710981893af7e15

SHA1
c558c9854883e94ae2ee3743633bb6cfbe365921

SHA256
e9d80d86ca26fc4b89796f1bf87df8ca9776c76833ee0a824c2e0d4b9a2d99a0

SHA512
33a5ddc5979d903d8fec700935b4b497d61eca5e03793a5d722706d4a63ed3e92e4461b110d3c59be0f9bfc1128e572ca66f3562ee113e88e95dcbacd4d65ecd

Download Submit
C:\Windows\SysWOW64\msn.exe

Filesize
14KB

MD5
ee398fdc42e4688ca710981893af7e15

SHA1
c558c9854883e94ae2ee3743633bb6cfbe365921

SHA256
e9d80d86ca26fc4b89796f1bf87df8ca9776c76833ee0a824c2e0d4b9a2d99a0

SHA512
33a5ddc5979d903d8fec700935b4b497d61eca5e03793a5d722706d4a63ed3e92e4461b110d3c59be0f9bfc1128e572ca66f3562ee113e88e95dcbacd4d65ecd

Download Submit
\Windows\SysWOW64\hook.dll

Filesize
3KB

MD5
09622aa51a9ebb43e7f08fb526e17271

SHA1
b679fbe74699be374fe8999395dbe92328f6971b

SHA256
2a0dc780e9860a640542335630edd022a3d630c6428baa53f052581f272e8850

SHA512
cca2f390dc702c03651c86016673ae25652d23bb5fbbd844593d9b30cc681a9dd254a550d0f53e5c340118a460f78490040a9cca13643fddc53458fae09ec170

Download Submit
\Windows\SysWOW64\msn.exe

Filesize
14KB

MD5
ee398fdc42e4688ca710981893af7e15

SHA1
c558c9854883e94ae2ee3743633bb6cfbe365921

SHA256
e9d80d86ca26fc4b89796f1bf87df8ca9776c76833ee0a824c2e0d4b9a2d99a0

SHA512
33a5ddc5979d903d8fec700935b4b497d61eca5e03793a5d722706d4a63ed3e92e4461b110d3c59be0f9bfc1128e572ca66f3562ee113e88e95dcbacd4d65ecd

Download Submit
\Windows\SysWOW64\msn.exe

Filesize
14KB

MD5
ee398fdc42e4688ca710981893af7e15

SHA1
c558c9854883e94ae2ee3743633bb6cfbe365921

SHA256
e9d80d86ca26fc4b89796f1bf87df8ca9776c76833ee0a824c2e0d4b9a2d99a0

SHA512
33a5ddc5979d903d8fec700935b4b497d61eca5e03793a5d722706d4a63ed3e92e4461b110d3c59be0f9bfc1128e572ca66f3562ee113e88e95dcbacd4d65ecd

Download Submit
memory/752-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/752-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/752-69-0x0000000010000000-0x0000000010004000-memory.dmp

Filesize
16KB

Download
memory/904-64-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/940-60-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/940-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads