f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49

General

Target

f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe
Size

390KB
MD5

2ef5b41a3b40b87a252ad568fe74bb53
SHA1

57a38efa35497026fa81dec9d0a6e56dd3118fdc
SHA256

f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49
SHA512

9dfc0614f3ad919cf279da8f45218b4dee8c17c96089ef36a312f498906b64272f3769127c3540af79ac2349dd5431ff66d370eeb33f006d644694bb8fe4e728
SSDEEP

6144:ZhvVlLB7RJ2IBsISG7WwEDQrYSZ5QRhv48aqHLrwtc7ITsq:ZhvfN7RgIeIr7W4YEQHQ8aq/l7

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
19	4456	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4456	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
3752	f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe
3752	f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe
3752	f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4188	3752	WerFault.exe	76
1536	4456	WerFault.exe	86

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4456	rundll32.exe
4456	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3752 wrote to memory of 4456	3752	f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe	86
PID 3752 wrote to memory of 4456	3752	f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe
"C:\Users\Admin\AppData\Local\Temp\f2d300d8fb1ef1812db6c63ce75f419e4092742a123bb0ffb7e6c257d53a6b49.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:3752
- C:\Windows\system32\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\nsis_unse56c931.dll",PrintUIEntry |5CQkOhiAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAOVkHwBs8|AtBUwAS|4fADkAVQBCAFi|AEQAUgB6GQB67wBKAGstAllIg||sKOgEAgAASP+DxCjDzMzMTP+JRCQYSIlUJL8QSIlMJAhZAUj|i0QkMEiJBCT2fQE4SGsACEjHRNskEC0B6w59ARBI14PAAYsBEH0BQEjtOZIAcyWbA4sMJP9IA8hIi8FIi|VMpwFUdwAD0UiLf8qKCYgI68FiBb9lSIsEJWDz8DP|yUiLUBhIO9H|dDZIg8IgSIv|Akg7wnQqZoP|eEgYdRpMi0D|UGZBgzhrdAfuDRFLdQgNEHgQLv90BUiLAOvVSOuLSPkAwWYAQFNV|1ZXQVRBVUFW+0FXWQFmgTlNWv9Ni|hMi|JIi+|ZD4X8NQFjSTz|QYE8CVBFAAD3D4Xq8|BBi4QJ|Yjz8IXASI08AfcPhNZmEYO8CYzuLQEPhMfz8ESLZ|8gRItfHIt3JP9Ei08YTAPhTP8D2UgD8TPJRd+FyQ+EpPPwTYv|xEGLEEUz0kj|A9OKAoTAdB1|QcHKDQ++wPYA7wFEA9C7EXXsQf+B+qr8DXx0Dv+DwQFJg8AEQf87yXNp68aLwf8PtwxORYssi39MA+t0WDPtphDfdFFBixS9ANMz|8mKAkyLwusP28HJxBEDyOEQAUH7igDREO0zwDP2z0E7DLbcEKIAg8b|AYP4CHLu6wr|SIvLQf|VSYnvBPeDxeAQxAQ7728Ycq9iAUFfQf9eQV1BXF9eXX1bLxdIgexgAWAA|4vp6Gb+||9I34XAD4SZcSBMjfqrAYsnEMgz|+ib|nkgjV8ETI1FQv8z0ovL|1QkaH58IEyL4A+EbHEgvUWkEDPAi9ONIEiviXwkIKIgcHwgSJ+L8A+ETHEgoiBQ|0iNVghEjUdA70iNjCSBEUiL2HfofP16II1WSNogtRDeIczz8Ohn6yBEn4sGjVcIPSCiIFhexiGJhCSAgxLd8|B7iw7WIFiJjCRtEewDMI0g6DHrIEyLXXc6i6wpMkiLnBYy|0yJZCQ4RI1n32xJO+xIhiAwTLuJXIABhCTcgxGG6Y7jId8g8KwTSIvTt+jn|AEwipxzMkj7jYRzMkGA8yFJ34vMRDAYoAKD6d8BdfOBvHMyIVL|ZXh1SouEJPTuHjGUJPjz8APCSP876HI1QTvUdv8wRI1JQEkr1KdBuACUAKIgQMYi+Od0F0S0ML4xSI1TfWyNIE0rxOhsgDD3SIvOoiB4SIX|53QUTIwwFzFIjUzvJEC6A|Pw|9dIM4HEcCFdJAAA
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:4456
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 4456 -s 532
    3⤵
    - Program crash
    PID:1536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 680
  2⤵
  - Program crash
  PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3752 -ip 3752
1⤵
PID:1812

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 468 -p 4456 -ip 4456
1⤵
PID:1360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\nsis_unse56c931.dll

Filesize
58KB

MD5
664e46926466a2d4c9b87540f4853c39

SHA1
b172d1c2bde331770b0a944fcf6a9e2d75ded66b

SHA256
92a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488

SHA512
1490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03

Download Submit
C:\Users\Admin\AppData\Roaming\nsis_unse56c931.dll

Filesize
58KB

MD5
664e46926466a2d4c9b87540f4853c39

SHA1
b172d1c2bde331770b0a944fcf6a9e2d75ded66b

SHA256
92a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488

SHA512
1490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03

Download Submit
memory/3752-135-0x0000000000400000-0x0000000002C50000-memory.dmp

Filesize
40.3MB

Download
memory/3752-133-0x0000000002CB0000-0x0000000002CE0000-memory.dmp

Filesize
192KB

Download
memory/3752-134-0x0000000002F30000-0x0000000002F4A000-memory.dmp

Filesize
104KB

Download
memory/3752-132-0x0000000002CF2000-0x0000000002D17000-memory.dmp

Filesize
148KB

Download
memory/3752-139-0x0000000002F50000-0x0000000002F6D000-memory.dmp

Filesize
116KB

Download
memory/3752-140-0x0000000004DB0000-0x0000000005DB0000-memory.dmp

Filesize
16.0MB

Download
memory/3752-143-0x0000000000400000-0x0000000002C50000-memory.dmp

Filesize
40.3MB

Download
memory/4456-141-0x0000019FA8780000-0x0000019FA8787000-memory.dmp

Filesize
28KB

Download
memory/4456-142-0x00007FF40D5B0000-0x00007FF40D6AA000-memory.dmp

Filesize
1000KB

Download
memory/4456-144-0x00007FF40D5B0000-0x00007FF40D6AA000-memory.dmp

Filesize
1000KB

Download
memory/4456-145-0x00007FF40D5B0000-0x00007FF40D6AA000-memory.dmp

Filesize
1000KB

Download
memory/4456-146-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download

Analysis

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