stealc | 2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0

General

Target

2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
Size

253KB
MD5

be69c6abc3f3fb4653fb97e9a42f69d4
SHA1

d0c593665fb6e8eab0200061f8cc5ec6b420f744
SHA256

2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0
SHA512

0cc27bbcaf7d12269f931746341412c6e551dcc1c00e8b63764c371a4edd3c2a5667c2a7f80aebdada51b0f0b71ee550b2d4e3b6e91ae4e871358cab2b0770e4
SSDEEP

6144:4ccfMzvudPLIzKSzQwl/Jv/c+HWTwiC4GsU64:ofMz2dDIzKSzvlxXFHGM

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.26

Attributes

url_path
/f993692117a3fda2.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Detect binaries embedding considerable number of MFA browser extension IDs. 5 IoCs

resource	yara_rule
behavioral2/memory/4908-28-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4908-90-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4908-91-0x0000000000850000-0x0000000000950000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4908-110-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral2/memory/4908-122-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 5 IoCs

resource	yara_rule
behavioral2/memory/4908-28-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4908-90-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4908-91-0x0000000000850000-0x0000000000950000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4908-110-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral2/memory/4908-122-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs

resource	yara_rule
behavioral2/memory/4908-28-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/4908-90-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/4908-110-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/4908-122-0x0000000000400000-0x000000000063B000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	EGCBAFCFIJ.exe

Executes dropped EXE 1 IoCs

pid	Process
1412	EGCBAFCFIJ.exe

Loads dropped DLL 2 IoCs

pid	Process
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1812	4908	WerFault.exe	91

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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4852	PING.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 3988	4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe	105
PID 4908 wrote to memory of 3988	4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe	105
PID 4908 wrote to memory of 3988	4908	2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe	105
PID 3988 wrote to memory of 1412	3988	cmd.exe	108
PID 3988 wrote to memory of 1412	3988	cmd.exe	108
PID 3988 wrote to memory of 1412	3988	cmd.exe	108
PID 1412 wrote to memory of 3624	1412	EGCBAFCFIJ.exe	111
PID 1412 wrote to memory of 3624	1412	EGCBAFCFIJ.exe	111
PID 1412 wrote to memory of 3624	1412	EGCBAFCFIJ.exe	111
PID 3624 wrote to memory of 4852	3624	cmd.exe	113
PID 3624 wrote to memory of 4852	3624	cmd.exe	113
PID 3624 wrote to memory of 4852	3624	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe
"C:\Users\Admin\AppData\Local\Temp\2df0ef78fe988af2fd1e46eb8332ff678e43b1ee52b29ef69098851b99883dd0.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EGCBAFCFIJ.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Users\Admin\AppData\Local\Temp\EGCBAFCFIJ.exe
    "C:\Users\Admin\AppData\Local\Temp\EGCBAFCFIJ.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1412
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\EGCBAFCFIJ.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3624
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        5⤵
        Runs ping.exe
        
        PID:4852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 2460
  2⤵
  - Program crash
  PID:1812

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3756 --field-trial-handle=3488,i,1267426273081718772,6254127258555406296,262144 --variations-seed-version /prefetch:3
1⤵
PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4908 -ip 4908
1⤵
PID:1632

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3136 --field-trial-handle=3488,i,1267426273081718772,6254127258555406296,262144 --variations-seed-version /prefetch:8
1⤵
PID:1324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

3

T1012

Remote System Discovery

1

T1018

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Are.docx

Filesize
11KB

MD5
a33e5b189842c5867f46566bdbf7a095

SHA1
e1c06359f6a76da90d19e8fd95e79c832edb3196

SHA256
5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

SHA512
f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

Download Submit
C:\ProgramData\mozglue.dll

Filesize
320KB

MD5
359529e3fd3d1ef484b67ce5f3483d56

SHA1
d27c94914883ec2b7f6feab7b0f77d264a578c96

SHA256
4310414b8cf4ed75a52c8147b07d9fe4b03c818560878aaf829eff16fc172b50

SHA512
594dffe2101d93f6f9d16a9923c554025846c7df707d73c3a7c12545a39f3bf11243514b1aa351b99fc2bd5b96b944a4644fb02386eb59e969ca7b2d47744f41

Download Submit
C:\ProgramData\mozglue.dll

Filesize
247KB

MD5
58a91e3c0a0e6b1f918b6fbd8b2d2002

SHA1
a9ee9720ca3bbe4f71c266e724c40234b4b94a2d

SHA256
956059338b777c61b1dfff4d4edd864b5b4b1686a5078fa5f9f25b71d3a9f7b1

SHA512
8a0e723e3d223a62d5b40e6b62f3c0087f1a1f4f4321234c19c438d48019dce57c137ba2cb3970a645010b15b24db8972b3238a97b046d921fbe07adb6b0cc15

Download Submit
C:\ProgramData\nss3.dll

Filesize
576KB

MD5
8b744e85b34bc21d630c0669e5d457fa

SHA1
e646ca548d94395ccc0da91142af69417390e722

SHA256
b56ca41b73a778f6da5e2e6b4c747c32d184118b64f5d98d666431895baa3f11

SHA512
54e703f9c4cd83313f4a959dd3607e605d47e2c73757eeaccfeccb4e84b0b44bef66fe2cf831992c4f87d78b1bdcbcc68cf72ecd882d8ede1482719ef1a1221d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

Filesize
40B

MD5
20d4b8fa017a12a108c87f540836e250

SHA1
1ac617fac131262b6d3ce1f52f5907e31d5f6f00

SHA256
6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

SHA512
507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Download Submit
C:\Users\Admin\AppData\Local\Temp\EGCBAFCFIJ.exe

Filesize
106KB

MD5
fe380780b5c35bd6d54541791151c2be

SHA1
7fe3a583cf91474c733f85cebf3c857682e269e1

SHA256
b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

SHA512
ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

Download Submit
memory/1412-117-0x0000000000930000-0x0000000000950000-memory.dmp

Filesize
128KB

Download
memory/1412-118-0x0000000072030000-0x00000000727E0000-memory.dmp

Filesize
7.7MB

Download
memory/1412-119-0x0000000005410000-0x0000000005420000-memory.dmp

Filesize
64KB

Download
memory/1412-123-0x0000000072030000-0x00000000727E0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-28-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4908-90-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4908-91-0x0000000000850000-0x0000000000950000-memory.dmp

Filesize
1024KB

Download
memory/4908-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4908-3-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4908-110-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/4908-2-0x0000000000820000-0x0000000000847000-memory.dmp

Filesize
156KB

Download
memory/4908-1-0x0000000000850000-0x0000000000950000-memory.dmp

Filesize
1024KB

Download
memory/4908-122-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads